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     74 
     75 <h1><a href="pubsub_v1.html">Google Cloud Pub/Sub API</a> . <a href="pubsub_v1.projects.html">projects</a> . <a href="pubsub_v1.projects.subscriptions.html">subscriptions</a></h1>
     76 <h2>Instance Methods</h2>
     77 <p class="toc_element">
     78   <code><a href="#acknowledge">acknowledge(subscription, body, x__xgafv=None)</a></code></p>
     79 <p class="firstline">Acknowledges the messages associated with the `ack_ids` in the</p>
     80 <p class="toc_element">
     81   <code><a href="#create">create(name, body, x__xgafv=None)</a></code></p>
     82 <p class="firstline">Creates a subscription to a given topic.</p>
     83 <p class="toc_element">
     84   <code><a href="#delete">delete(subscription, x__xgafv=None)</a></code></p>
     85 <p class="firstline">Deletes an existing subscription. All messages retained in the subscription</p>
     86 <p class="toc_element">
     87   <code><a href="#get">get(subscription, x__xgafv=None)</a></code></p>
     88 <p class="firstline">Gets the configuration details of a subscription.</p>
     89 <p class="toc_element">
     90   <code><a href="#getIamPolicy">getIamPolicy(resource, x__xgafv=None)</a></code></p>
     91 <p class="firstline">Gets the access control policy for a resource.</p>
     92 <p class="toc_element">
     93   <code><a href="#list">list(project, pageSize=None, pageToken=None, x__xgafv=None)</a></code></p>
     94 <p class="firstline">Lists matching subscriptions.</p>
     95 <p class="toc_element">
     96   <code><a href="#list_next">list_next(previous_request, previous_response)</a></code></p>
     97 <p class="firstline">Retrieves the next page of results.</p>
     98 <p class="toc_element">
     99   <code><a href="#modifyAckDeadline">modifyAckDeadline(subscription, body, x__xgafv=None)</a></code></p>
    100 <p class="firstline">Modifies the ack deadline for a specific message. This method is useful</p>
    101 <p class="toc_element">
    102   <code><a href="#modifyPushConfig">modifyPushConfig(subscription, body, x__xgafv=None)</a></code></p>
    103 <p class="firstline">Modifies the `PushConfig` for a specified subscription.</p>
    104 <p class="toc_element">
    105   <code><a href="#pull">pull(subscription, body, x__xgafv=None)</a></code></p>
    106 <p class="firstline">Pulls messages from the server. Returns an empty list if there are no</p>
    107 <p class="toc_element">
    108   <code><a href="#setIamPolicy">setIamPolicy(resource, body, x__xgafv=None)</a></code></p>
    109 <p class="firstline">Sets the access control policy on the specified resource. Replaces any</p>
    110 <p class="toc_element">
    111   <code><a href="#testIamPermissions">testIamPermissions(resource, body, x__xgafv=None)</a></code></p>
    112 <p class="firstline">Returns permissions that a caller has on the specified resource.</p>
    113 <h3>Method Details</h3>
    114 <div class="method">
    115     <code class="details" id="acknowledge">acknowledge(subscription, body, x__xgafv=None)</code>
    116   <pre>Acknowledges the messages associated with the `ack_ids` in the
    117 `AcknowledgeRequest`. The Pub/Sub system can remove the relevant messages
    118 from the subscription.
    119 
    120 Acknowledging a message whose ack deadline has expired may succeed,
    121 but such a message may be redelivered later. Acknowledging a message more
    122 than once will not result in an error.
    123 
    124 Args:
    125   subscription: string, The subscription whose message is being acknowledged.
    126 Format is `projects/{project}/subscriptions/{sub}`. (required)
    127   body: object, The request body. (required)
    128     The object takes the form of:
    129 
    130 { # Request for the Acknowledge method.
    131     "ackIds": [ # The acknowledgment ID for the messages being acknowledged that was returned
    132         # by the Pub/Sub system in the `Pull` response. Must not be empty.
    133       "A String",
    134     ],
    135   }
    136 
    137   x__xgafv: string, V1 error format.
    138     Allowed values
    139       1 - v1 error format
    140       2 - v2 error format
    141 
    142 Returns:
    143   An object of the form:
    144 
    145     { # A generic empty message that you can re-use to avoid defining duplicated
    146       # empty messages in your APIs. A typical example is to use it as the request
    147       # or the response type of an API method. For instance:
    148       #
    149       #     service Foo {
    150       #       rpc Bar(google.protobuf.Empty) returns (google.protobuf.Empty);
    151       #     }
    152       #
    153       # The JSON representation for `Empty` is empty JSON object `{}`.
    154   }</pre>
    155 </div>
    156 
    157 <div class="method">
    158     <code class="details" id="create">create(name, body, x__xgafv=None)</code>
    159   <pre>Creates a subscription to a given topic.
    160 If the subscription already exists, returns `ALREADY_EXISTS`.
    161 If the corresponding topic doesn't exist, returns `NOT_FOUND`.
    162 
    163 If the name is not provided in the request, the server will assign a random
    164 name for this subscription on the same project as the topic, conforming
    165 to the
    166 [resource name format](https://cloud.google.com/pubsub/docs/overview#names).
    167 The generated name is populated in the returned Subscription object.
    168 Note that for REST API requests, you must specify a name in the request.
    169 
    170 Args:
    171   name: string, The name of the subscription. It must have the format
    172 `"projects/{project}/subscriptions/{subscription}"`. `{subscription}` must
    173 start with a letter, and contain only letters (`[A-Za-z]`), numbers
    174 (`[0-9]`), dashes (`-`), underscores (`_`), periods (`.`), tildes (`~`),
    175 plus (`+`) or percent signs (`%`). It must be between 3 and 255 characters
    176 in length, and it must not start with `"goog"`. (required)
    177   body: object, The request body. (required)
    178     The object takes the form of:
    179 
    180 { # A subscription resource.
    181   "ackDeadlineSeconds": 42, # This value is the maximum time after a subscriber receives a message
    182       # before the subscriber should acknowledge the message. After message
    183       # delivery but before the ack deadline expires and before the message is
    184       # acknowledged, it is an outstanding message and will not be delivered
    185       # again during that time (on a best-effort basis).
    186       # 
    187       # For pull subscriptions, this value is used as the initial value for the ack
    188       # deadline. To override this value for a given message, call
    189       # `ModifyAckDeadline` with the corresponding `ack_id` if using
    190       # pull.
    191       # The minimum custom deadline you can specify is 10 seconds.
    192       # The maximum custom deadline you can specify is 600 seconds (10 minutes).
    193       # If this parameter is 0, a default value of 10 seconds is used.
    194       # 
    195       # For push delivery, this value is also used to set the request timeout for
    196       # the call to the push endpoint.
    197       # 
    198       # If the subscriber never acknowledges the message, the Pub/Sub
    199       # system will eventually redeliver the message.
    200   "topic": "A String", # The name of the topic from which this subscription is receiving messages.
    201       # Format is `projects/{project}/topics/{topic}`.
    202       # The value of this field will be `_deleted-topic_` if the topic has been
    203       # deleted.
    204   "pushConfig": { # Configuration for a push delivery endpoint. # If push delivery is used with this subscription, this field is
    205       # used to configure it. An empty `pushConfig` signifies that the subscriber
    206       # will pull and ack messages using API methods.
    207     "attributes": { # Endpoint configuration attributes.
    208         #
    209         # Every endpoint has a set of API supported attributes that can be used to
    210         # control different aspects of the message delivery.
    211         #
    212         # The currently supported attribute is `x-goog-version`, which you can
    213         # use to change the format of the pushed message. This attribute
    214         # indicates the version of the data expected by the endpoint. This
    215         # controls the shape of the pushed message (i.e., its fields and metadata).
    216         # The endpoint version is based on the version of the Pub/Sub API.
    217         #
    218         # If not present during the `CreateSubscription` call, it will default to
    219         # the version of the API used to make such call. If not present during a
    220         # `ModifyPushConfig` call, its value will not be changed. `GetSubscription`
    221         # calls will always return a valid version, even if the subscription was
    222         # created without this attribute.
    223         #
    224         # The possible values for this attribute are:
    225         #
    226         # * `v1beta1`: uses the push format defined in the v1beta1 Pub/Sub API.
    227         # * `v1` or `v1beta2`: uses the push format defined in the v1 Pub/Sub API.
    228       "a_key": "A String",
    229     },
    230     "pushEndpoint": "A String", # A URL locating the endpoint to which messages should be pushed.
    231         # For example, a Webhook endpoint might use "https://example.com/push".
    232   },
    233   "name": "A String", # The name of the subscription. It must have the format
    234       # `"projects/{project}/subscriptions/{subscription}"`. `{subscription}` must
    235       # start with a letter, and contain only letters (`[A-Za-z]`), numbers
    236       # (`[0-9]`), dashes (`-`), underscores (`_`), periods (`.`), tildes (`~`),
    237       # plus (`+`) or percent signs (`%`). It must be between 3 and 255 characters
    238       # in length, and it must not start with `"goog"`.
    239 }
    240 
    241   x__xgafv: string, V1 error format.
    242     Allowed values
    243       1 - v1 error format
    244       2 - v2 error format
    245 
    246 Returns:
    247   An object of the form:
    248 
    249     { # A subscription resource.
    250     "ackDeadlineSeconds": 42, # This value is the maximum time after a subscriber receives a message
    251         # before the subscriber should acknowledge the message. After message
    252         # delivery but before the ack deadline expires and before the message is
    253         # acknowledged, it is an outstanding message and will not be delivered
    254         # again during that time (on a best-effort basis).
    255         #
    256         # For pull subscriptions, this value is used as the initial value for the ack
    257         # deadline. To override this value for a given message, call
    258         # `ModifyAckDeadline` with the corresponding `ack_id` if using
    259         # pull.
    260         # The minimum custom deadline you can specify is 10 seconds.
    261         # The maximum custom deadline you can specify is 600 seconds (10 minutes).
    262         # If this parameter is 0, a default value of 10 seconds is used.
    263         #
    264         # For push delivery, this value is also used to set the request timeout for
    265         # the call to the push endpoint.
    266         #
    267         # If the subscriber never acknowledges the message, the Pub/Sub
    268         # system will eventually redeliver the message.
    269     "topic": "A String", # The name of the topic from which this subscription is receiving messages.
    270         # Format is `projects/{project}/topics/{topic}`.
    271         # The value of this field will be `_deleted-topic_` if the topic has been
    272         # deleted.
    273     "pushConfig": { # Configuration for a push delivery endpoint. # If push delivery is used with this subscription, this field is
    274         # used to configure it. An empty `pushConfig` signifies that the subscriber
    275         # will pull and ack messages using API methods.
    276       "attributes": { # Endpoint configuration attributes.
    277           #
    278           # Every endpoint has a set of API supported attributes that can be used to
    279           # control different aspects of the message delivery.
    280           #
    281           # The currently supported attribute is `x-goog-version`, which you can
    282           # use to change the format of the pushed message. This attribute
    283           # indicates the version of the data expected by the endpoint. This
    284           # controls the shape of the pushed message (i.e., its fields and metadata).
    285           # The endpoint version is based on the version of the Pub/Sub API.
    286           #
    287           # If not present during the `CreateSubscription` call, it will default to
    288           # the version of the API used to make such call. If not present during a
    289           # `ModifyPushConfig` call, its value will not be changed. `GetSubscription`
    290           # calls will always return a valid version, even if the subscription was
    291           # created without this attribute.
    292           #
    293           # The possible values for this attribute are:
    294           #
    295           # * `v1beta1`: uses the push format defined in the v1beta1 Pub/Sub API.
    296           # * `v1` or `v1beta2`: uses the push format defined in the v1 Pub/Sub API.
    297         "a_key": "A String",
    298       },
    299       "pushEndpoint": "A String", # A URL locating the endpoint to which messages should be pushed.
    300           # For example, a Webhook endpoint might use "https://example.com/push".
    301     },
    302     "name": "A String", # The name of the subscription. It must have the format
    303         # `"projects/{project}/subscriptions/{subscription}"`. `{subscription}` must
    304         # start with a letter, and contain only letters (`[A-Za-z]`), numbers
    305         # (`[0-9]`), dashes (`-`), underscores (`_`), periods (`.`), tildes (`~`),
    306         # plus (`+`) or percent signs (`%`). It must be between 3 and 255 characters
    307         # in length, and it must not start with `"goog"`.
    308   }</pre>
    309 </div>
    310 
    311 <div class="method">
    312     <code class="details" id="delete">delete(subscription, x__xgafv=None)</code>
    313   <pre>Deletes an existing subscription. All messages retained in the subscription
    314 are immediately dropped. Calls to `Pull` after deletion will return
    315 `NOT_FOUND`. After a subscription is deleted, a new one may be created with
    316 the same name, but the new one has no association with the old
    317 subscription or its topic unless the same topic is specified.
    318 
    319 Args:
    320   subscription: string, The subscription to delete.
    321 Format is `projects/{project}/subscriptions/{sub}`. (required)
    322   x__xgafv: string, V1 error format.
    323     Allowed values
    324       1 - v1 error format
    325       2 - v2 error format
    326 
    327 Returns:
    328   An object of the form:
    329 
    330     { # A generic empty message that you can re-use to avoid defining duplicated
    331       # empty messages in your APIs. A typical example is to use it as the request
    332       # or the response type of an API method. For instance:
    333       #
    334       #     service Foo {
    335       #       rpc Bar(google.protobuf.Empty) returns (google.protobuf.Empty);
    336       #     }
    337       #
    338       # The JSON representation for `Empty` is empty JSON object `{}`.
    339   }</pre>
    340 </div>
    341 
    342 <div class="method">
    343     <code class="details" id="get">get(subscription, x__xgafv=None)</code>
    344   <pre>Gets the configuration details of a subscription.
    345 
    346 Args:
    347   subscription: string, The name of the subscription to get.
    348 Format is `projects/{project}/subscriptions/{sub}`. (required)
    349   x__xgafv: string, V1 error format.
    350     Allowed values
    351       1 - v1 error format
    352       2 - v2 error format
    353 
    354 Returns:
    355   An object of the form:
    356 
    357     { # A subscription resource.
    358     "ackDeadlineSeconds": 42, # This value is the maximum time after a subscriber receives a message
    359         # before the subscriber should acknowledge the message. After message
    360         # delivery but before the ack deadline expires and before the message is
    361         # acknowledged, it is an outstanding message and will not be delivered
    362         # again during that time (on a best-effort basis).
    363         #
    364         # For pull subscriptions, this value is used as the initial value for the ack
    365         # deadline. To override this value for a given message, call
    366         # `ModifyAckDeadline` with the corresponding `ack_id` if using
    367         # pull.
    368         # The minimum custom deadline you can specify is 10 seconds.
    369         # The maximum custom deadline you can specify is 600 seconds (10 minutes).
    370         # If this parameter is 0, a default value of 10 seconds is used.
    371         #
    372         # For push delivery, this value is also used to set the request timeout for
    373         # the call to the push endpoint.
    374         #
    375         # If the subscriber never acknowledges the message, the Pub/Sub
    376         # system will eventually redeliver the message.
    377     "topic": "A String", # The name of the topic from which this subscription is receiving messages.
    378         # Format is `projects/{project}/topics/{topic}`.
    379         # The value of this field will be `_deleted-topic_` if the topic has been
    380         # deleted.
    381     "pushConfig": { # Configuration for a push delivery endpoint. # If push delivery is used with this subscription, this field is
    382         # used to configure it. An empty `pushConfig` signifies that the subscriber
    383         # will pull and ack messages using API methods.
    384       "attributes": { # Endpoint configuration attributes.
    385           #
    386           # Every endpoint has a set of API supported attributes that can be used to
    387           # control different aspects of the message delivery.
    388           #
    389           # The currently supported attribute is `x-goog-version`, which you can
    390           # use to change the format of the pushed message. This attribute
    391           # indicates the version of the data expected by the endpoint. This
    392           # controls the shape of the pushed message (i.e., its fields and metadata).
    393           # The endpoint version is based on the version of the Pub/Sub API.
    394           #
    395           # If not present during the `CreateSubscription` call, it will default to
    396           # the version of the API used to make such call. If not present during a
    397           # `ModifyPushConfig` call, its value will not be changed. `GetSubscription`
    398           # calls will always return a valid version, even if the subscription was
    399           # created without this attribute.
    400           #
    401           # The possible values for this attribute are:
    402           #
    403           # * `v1beta1`: uses the push format defined in the v1beta1 Pub/Sub API.
    404           # * `v1` or `v1beta2`: uses the push format defined in the v1 Pub/Sub API.
    405         "a_key": "A String",
    406       },
    407       "pushEndpoint": "A String", # A URL locating the endpoint to which messages should be pushed.
    408           # For example, a Webhook endpoint might use "https://example.com/push".
    409     },
    410     "name": "A String", # The name of the subscription. It must have the format
    411         # `"projects/{project}/subscriptions/{subscription}"`. `{subscription}` must
    412         # start with a letter, and contain only letters (`[A-Za-z]`), numbers
    413         # (`[0-9]`), dashes (`-`), underscores (`_`), periods (`.`), tildes (`~`),
    414         # plus (`+`) or percent signs (`%`). It must be between 3 and 255 characters
    415         # in length, and it must not start with `"goog"`.
    416   }</pre>
    417 </div>
    418 
    419 <div class="method">
    420     <code class="details" id="getIamPolicy">getIamPolicy(resource, x__xgafv=None)</code>
    421   <pre>Gets the access control policy for a resource.
    422 Returns an empty policy if the resource exists and does not have a policy
    423 set.
    424 
    425 Args:
    426   resource: string, REQUIRED: The resource for which the policy is being requested.
    427 See the operation documentation for the appropriate value for this field. (required)
    428   x__xgafv: string, V1 error format.
    429     Allowed values
    430       1 - v1 error format
    431       2 - v2 error format
    432 
    433 Returns:
    434   An object of the form:
    435 
    436     { # Defines an Identity and Access Management (IAM) policy. It is used to
    437       # specify access control policies for Cloud Platform resources.
    438       #
    439       #
    440       # A `Policy` consists of a list of `bindings`. A `Binding` binds a list of
    441       # `members` to a `role`, where the members can be user accounts, Google groups,
    442       # Google domains, and service accounts. A `role` is a named list of permissions
    443       # defined by IAM.
    444       #
    445       # **Example**
    446       #
    447       #     {
    448       #       "bindings": [
    449       #         {
    450       #           "role": "roles/owner",
    451       #           "members": [
    452       #             "user:mike (a] example.com",
    453       #             "group:admins (a] example.com",
    454       #             "domain:google.com",
    455       #             "serviceAccount:my-other-app (a] appspot.gserviceaccount.com",
    456       #           ]
    457       #         },
    458       #         {
    459       #           "role": "roles/viewer",
    460       #           "members": ["user:sean (a] example.com"]
    461       #         }
    462       #       ]
    463       #     }
    464       #
    465       # For a description of IAM and its features, see the
    466       # [IAM developer's guide](https://cloud.google.com/iam).
    467     "bindings": [ # Associates a list of `members` to a `role`.
    468         # Multiple `bindings` must not be specified for the same `role`.
    469         # `bindings` with no members will result in an error.
    470       { # Associates `members` with a `role`.
    471         "role": "A String", # Role that is assigned to `members`.
    472             # For example, `roles/viewer`, `roles/editor`, or `roles/owner`.
    473             # Required
    474         "members": [ # Specifies the identities requesting access for a Cloud Platform resource.
    475             # `members` can have the following values:
    476             #
    477             # * `allUsers`: A special identifier that represents anyone who is
    478             #    on the internet; with or without a Google account.
    479             #
    480             # * `allAuthenticatedUsers`: A special identifier that represents anyone
    481             #    who is authenticated with a Google account or a service account.
    482             #
    483             # * `user:{emailid}`: An email address that represents a specific Google
    484             #    account. For example, `alice (a] gmail.com` or `joe (a] example.com`.
    485             #
    486             #
    487             # * `serviceAccount:{emailid}`: An email address that represents a service
    488             #    account. For example, `my-other-app (a] appspot.gserviceaccount.com`.
    489             #
    490             # * `group:{emailid}`: An email address that represents a Google group.
    491             #    For example, `admins (a] example.com`.
    492             #
    493             # * `domain:{domain}`: A Google Apps domain name that represents all the
    494             #    users of that domain. For example, `google.com` or `example.com`.
    495             #
    496           "A String",
    497         ],
    498       },
    499     ],
    500     "etag": "A String", # `etag` is used for optimistic concurrency control as a way to help
    501         # prevent simultaneous updates of a policy from overwriting each other.
    502         # It is strongly suggested that systems make use of the `etag` in the
    503         # read-modify-write cycle to perform policy updates in order to avoid race
    504         # conditions: An `etag` is returned in the response to `getIamPolicy`, and
    505         # systems are expected to put that etag in the request to `setIamPolicy` to
    506         # ensure that their change will be applied to the same version of the policy.
    507         #
    508         # If no `etag` is provided in the call to `setIamPolicy`, then the existing
    509         # policy is overwritten blindly.
    510     "version": 42, # Version of the `Policy`. The default version is 0.
    511   }</pre>
    512 </div>
    513 
    514 <div class="method">
    515     <code class="details" id="list">list(project, pageSize=None, pageToken=None, x__xgafv=None)</code>
    516   <pre>Lists matching subscriptions.
    517 
    518 Args:
    519   project: string, The name of the cloud project that subscriptions belong to.
    520 Format is `projects/{project}`. (required)
    521   pageSize: integer, Maximum number of subscriptions to return.
    522   pageToken: string, The value returned by the last `ListSubscriptionsResponse`; indicates that
    523 this is a continuation of a prior `ListSubscriptions` call, and that the
    524 system should return the next page of data.
    525   x__xgafv: string, V1 error format.
    526     Allowed values
    527       1 - v1 error format
    528       2 - v2 error format
    529 
    530 Returns:
    531   An object of the form:
    532 
    533     { # Response for the `ListSubscriptions` method.
    534     "nextPageToken": "A String", # If not empty, indicates that there may be more subscriptions that match
    535         # the request; this value should be passed in a new
    536         # `ListSubscriptionsRequest` to get more subscriptions.
    537     "subscriptions": [ # The subscriptions that match the request.
    538       { # A subscription resource.
    539         "ackDeadlineSeconds": 42, # This value is the maximum time after a subscriber receives a message
    540             # before the subscriber should acknowledge the message. After message
    541             # delivery but before the ack deadline expires and before the message is
    542             # acknowledged, it is an outstanding message and will not be delivered
    543             # again during that time (on a best-effort basis).
    544             #
    545             # For pull subscriptions, this value is used as the initial value for the ack
    546             # deadline. To override this value for a given message, call
    547             # `ModifyAckDeadline` with the corresponding `ack_id` if using
    548             # pull.
    549             # The minimum custom deadline you can specify is 10 seconds.
    550             # The maximum custom deadline you can specify is 600 seconds (10 minutes).
    551             # If this parameter is 0, a default value of 10 seconds is used.
    552             #
    553             # For push delivery, this value is also used to set the request timeout for
    554             # the call to the push endpoint.
    555             #
    556             # If the subscriber never acknowledges the message, the Pub/Sub
    557             # system will eventually redeliver the message.
    558         "topic": "A String", # The name of the topic from which this subscription is receiving messages.
    559             # Format is `projects/{project}/topics/{topic}`.
    560             # The value of this field will be `_deleted-topic_` if the topic has been
    561             # deleted.
    562         "pushConfig": { # Configuration for a push delivery endpoint. # If push delivery is used with this subscription, this field is
    563             # used to configure it. An empty `pushConfig` signifies that the subscriber
    564             # will pull and ack messages using API methods.
    565           "attributes": { # Endpoint configuration attributes.
    566               #
    567               # Every endpoint has a set of API supported attributes that can be used to
    568               # control different aspects of the message delivery.
    569               #
    570               # The currently supported attribute is `x-goog-version`, which you can
    571               # use to change the format of the pushed message. This attribute
    572               # indicates the version of the data expected by the endpoint. This
    573               # controls the shape of the pushed message (i.e., its fields and metadata).
    574               # The endpoint version is based on the version of the Pub/Sub API.
    575               #
    576               # If not present during the `CreateSubscription` call, it will default to
    577               # the version of the API used to make such call. If not present during a
    578               # `ModifyPushConfig` call, its value will not be changed. `GetSubscription`
    579               # calls will always return a valid version, even if the subscription was
    580               # created without this attribute.
    581               #
    582               # The possible values for this attribute are:
    583               #
    584               # * `v1beta1`: uses the push format defined in the v1beta1 Pub/Sub API.
    585               # * `v1` or `v1beta2`: uses the push format defined in the v1 Pub/Sub API.
    586             "a_key": "A String",
    587           },
    588           "pushEndpoint": "A String", # A URL locating the endpoint to which messages should be pushed.
    589               # For example, a Webhook endpoint might use "https://example.com/push".
    590         },
    591         "name": "A String", # The name of the subscription. It must have the format
    592             # `"projects/{project}/subscriptions/{subscription}"`. `{subscription}` must
    593             # start with a letter, and contain only letters (`[A-Za-z]`), numbers
    594             # (`[0-9]`), dashes (`-`), underscores (`_`), periods (`.`), tildes (`~`),
    595             # plus (`+`) or percent signs (`%`). It must be between 3 and 255 characters
    596             # in length, and it must not start with `"goog"`.
    597       },
    598     ],
    599   }</pre>
    600 </div>
    601 
    602 <div class="method">
    603     <code class="details" id="list_next">list_next(previous_request, previous_response)</code>
    604   <pre>Retrieves the next page of results.
    605 
    606 Args:
    607   previous_request: The request for the previous page. (required)
    608   previous_response: The response from the request for the previous page. (required)
    609 
    610 Returns:
    611   A request object that you can call 'execute()' on to request the next
    612   page. Returns None if there are no more items in the collection.
    613     </pre>
    614 </div>
    615 
    616 <div class="method">
    617     <code class="details" id="modifyAckDeadline">modifyAckDeadline(subscription, body, x__xgafv=None)</code>
    618   <pre>Modifies the ack deadline for a specific message. This method is useful
    619 to indicate that more time is needed to process a message by the
    620 subscriber, or to make the message available for redelivery if the
    621 processing was interrupted. Note that this does not modify the
    622 subscription-level `ackDeadlineSeconds` used for subsequent messages.
    623 
    624 Args:
    625   subscription: string, The name of the subscription.
    626 Format is `projects/{project}/subscriptions/{sub}`. (required)
    627   body: object, The request body. (required)
    628     The object takes the form of:
    629 
    630 { # Request for the ModifyAckDeadline method.
    631     "ackDeadlineSeconds": 42, # The new ack deadline with respect to the time this request was sent to
    632         # the Pub/Sub system. For example, if the value is 10, the new
    633         # ack deadline will expire 10 seconds after the `ModifyAckDeadline` call
    634         # was made. Specifying zero may immediately make the message available for
    635         # another pull request.
    636         # The minimum deadline you can specify is 0 seconds.
    637         # The maximum deadline you can specify is 600 seconds (10 minutes).
    638     "ackIds": [ # List of acknowledgment IDs.
    639       "A String",
    640     ],
    641   }
    642 
    643   x__xgafv: string, V1 error format.
    644     Allowed values
    645       1 - v1 error format
    646       2 - v2 error format
    647 
    648 Returns:
    649   An object of the form:
    650 
    651     { # A generic empty message that you can re-use to avoid defining duplicated
    652       # empty messages in your APIs. A typical example is to use it as the request
    653       # or the response type of an API method. For instance:
    654       #
    655       #     service Foo {
    656       #       rpc Bar(google.protobuf.Empty) returns (google.protobuf.Empty);
    657       #     }
    658       #
    659       # The JSON representation for `Empty` is empty JSON object `{}`.
    660   }</pre>
    661 </div>
    662 
    663 <div class="method">
    664     <code class="details" id="modifyPushConfig">modifyPushConfig(subscription, body, x__xgafv=None)</code>
    665   <pre>Modifies the `PushConfig` for a specified subscription.
    666 
    667 This may be used to change a push subscription to a pull one (signified by
    668 an empty `PushConfig`) or vice versa, or change the endpoint URL and other
    669 attributes of a push subscription. Messages will accumulate for delivery
    670 continuously through the call regardless of changes to the `PushConfig`.
    671 
    672 Args:
    673   subscription: string, The name of the subscription.
    674 Format is `projects/{project}/subscriptions/{sub}`. (required)
    675   body: object, The request body. (required)
    676     The object takes the form of:
    677 
    678 { # Request for the ModifyPushConfig method.
    679     "pushConfig": { # Configuration for a push delivery endpoint. # The push configuration for future deliveries.
    680         # 
    681         # An empty `pushConfig` indicates that the Pub/Sub system should
    682         # stop pushing messages from the given subscription and allow
    683         # messages to be pulled and acknowledged - effectively pausing
    684         # the subscription if `Pull` is not called.
    685       "attributes": { # Endpoint configuration attributes.
    686           #
    687           # Every endpoint has a set of API supported attributes that can be used to
    688           # control different aspects of the message delivery.
    689           #
    690           # The currently supported attribute is `x-goog-version`, which you can
    691           # use to change the format of the pushed message. This attribute
    692           # indicates the version of the data expected by the endpoint. This
    693           # controls the shape of the pushed message (i.e., its fields and metadata).
    694           # The endpoint version is based on the version of the Pub/Sub API.
    695           #
    696           # If not present during the `CreateSubscription` call, it will default to
    697           # the version of the API used to make such call. If not present during a
    698           # `ModifyPushConfig` call, its value will not be changed. `GetSubscription`
    699           # calls will always return a valid version, even if the subscription was
    700           # created without this attribute.
    701           #
    702           # The possible values for this attribute are:
    703           #
    704           # * `v1beta1`: uses the push format defined in the v1beta1 Pub/Sub API.
    705           # * `v1` or `v1beta2`: uses the push format defined in the v1 Pub/Sub API.
    706         "a_key": "A String",
    707       },
    708       "pushEndpoint": "A String", # A URL locating the endpoint to which messages should be pushed.
    709           # For example, a Webhook endpoint might use "https://example.com/push".
    710     },
    711   }
    712 
    713   x__xgafv: string, V1 error format.
    714     Allowed values
    715       1 - v1 error format
    716       2 - v2 error format
    717 
    718 Returns:
    719   An object of the form:
    720 
    721     { # A generic empty message that you can re-use to avoid defining duplicated
    722       # empty messages in your APIs. A typical example is to use it as the request
    723       # or the response type of an API method. For instance:
    724       #
    725       #     service Foo {
    726       #       rpc Bar(google.protobuf.Empty) returns (google.protobuf.Empty);
    727       #     }
    728       #
    729       # The JSON representation for `Empty` is empty JSON object `{}`.
    730   }</pre>
    731 </div>
    732 
    733 <div class="method">
    734     <code class="details" id="pull">pull(subscription, body, x__xgafv=None)</code>
    735   <pre>Pulls messages from the server. Returns an empty list if there are no
    736 messages available in the backlog. The server may return `UNAVAILABLE` if
    737 there are too many concurrent pull requests pending for the given
    738 subscription.
    739 
    740 Args:
    741   subscription: string, The subscription from which messages should be pulled.
    742 Format is `projects/{project}/subscriptions/{sub}`. (required)
    743   body: object, The request body. (required)
    744     The object takes the form of:
    745 
    746 { # Request for the `Pull` method.
    747     "returnImmediately": True or False, # If this field set to true, the system will respond immediately even if
    748         # it there are no messages available to return in the `Pull` response.
    749         # Otherwise, the system may wait (for a bounded amount of time) until at
    750         # least one message is available, rather than returning no messages. The
    751         # client may cancel the request if it does not wish to wait any longer for
    752         # the response.
    753     "maxMessages": 42, # The maximum number of messages returned for this request. The Pub/Sub
    754         # system may return fewer than the number specified.
    755   }
    756 
    757   x__xgafv: string, V1 error format.
    758     Allowed values
    759       1 - v1 error format
    760       2 - v2 error format
    761 
    762 Returns:
    763   An object of the form:
    764 
    765     { # Response for the `Pull` method.
    766     "receivedMessages": [ # Received Pub/Sub messages. The Pub/Sub system will return zero messages if
    767         # there are no more available in the backlog. The Pub/Sub system may return
    768         # fewer than the `maxMessages` requested even if there are more messages
    769         # available in the backlog.
    770       { # A message and its corresponding acknowledgment ID.
    771         "ackId": "A String", # This ID can be used to acknowledge the received message.
    772         "message": { # A message data and its attributes. The message payload must not be empty; # The message.
    773             # it must contain either a non-empty data field, or at least one attribute.
    774           "attributes": { # Optional attributes for this message.
    775             "a_key": "A String",
    776           },
    777           "data": "A String", # The message payload.
    778           "publishTime": "A String", # The time at which the message was published, populated by the server when
    779               # it receives the `Publish` call. It must not be populated by the
    780               # publisher in a `Publish` call.
    781           "messageId": "A String", # ID of this message, assigned by the server when the message is published.
    782               # Guaranteed to be unique within the topic. This value may be read by a
    783               # subscriber that receives a `PubsubMessage` via a `Pull` call or a push
    784               # delivery. It must not be populated by the publisher in a `Publish` call.
    785         },
    786       },
    787     ],
    788   }</pre>
    789 </div>
    790 
    791 <div class="method">
    792     <code class="details" id="setIamPolicy">setIamPolicy(resource, body, x__xgafv=None)</code>
    793   <pre>Sets the access control policy on the specified resource. Replaces any
    794 existing policy.
    795 
    796 Args:
    797   resource: string, REQUIRED: The resource for which the policy is being specified.
    798 See the operation documentation for the appropriate value for this field. (required)
    799   body: object, The request body. (required)
    800     The object takes the form of:
    801 
    802 { # Request message for `SetIamPolicy` method.
    803     "policy": { # Defines an Identity and Access Management (IAM) policy. It is used to # REQUIRED: The complete policy to be applied to the `resource`. The size of
    804         # the policy is limited to a few 10s of KB. An empty policy is a
    805         # valid policy but certain Cloud Platform services (such as Projects)
    806         # might reject them.
    807         # specify access control policies for Cloud Platform resources.
    808         #
    809         #
    810         # A `Policy` consists of a list of `bindings`. A `Binding` binds a list of
    811         # `members` to a `role`, where the members can be user accounts, Google groups,
    812         # Google domains, and service accounts. A `role` is a named list of permissions
    813         # defined by IAM.
    814         #
    815         # **Example**
    816         #
    817         #     {
    818         #       "bindings": [
    819         #         {
    820         #           "role": "roles/owner",
    821         #           "members": [
    822         #             "user:mike (a] example.com",
    823         #             "group:admins (a] example.com",
    824         #             "domain:google.com",
    825         #             "serviceAccount:my-other-app (a] appspot.gserviceaccount.com",
    826         #           ]
    827         #         },
    828         #         {
    829         #           "role": "roles/viewer",
    830         #           "members": ["user:sean (a] example.com"]
    831         #         }
    832         #       ]
    833         #     }
    834         #
    835         # For a description of IAM and its features, see the
    836         # [IAM developer's guide](https://cloud.google.com/iam).
    837       "bindings": [ # Associates a list of `members` to a `role`.
    838           # Multiple `bindings` must not be specified for the same `role`.
    839           # `bindings` with no members will result in an error.
    840         { # Associates `members` with a `role`.
    841           "role": "A String", # Role that is assigned to `members`.
    842               # For example, `roles/viewer`, `roles/editor`, or `roles/owner`.
    843               # Required
    844           "members": [ # Specifies the identities requesting access for a Cloud Platform resource.
    845               # `members` can have the following values:
    846               #
    847               # * `allUsers`: A special identifier that represents anyone who is
    848               #    on the internet; with or without a Google account.
    849               #
    850               # * `allAuthenticatedUsers`: A special identifier that represents anyone
    851               #    who is authenticated with a Google account or a service account.
    852               #
    853               # * `user:{emailid}`: An email address that represents a specific Google
    854               #    account. For example, `alice (a] gmail.com` or `joe (a] example.com`.
    855               #
    856               #
    857               # * `serviceAccount:{emailid}`: An email address that represents a service
    858               #    account. For example, `my-other-app (a] appspot.gserviceaccount.com`.
    859               #
    860               # * `group:{emailid}`: An email address that represents a Google group.
    861               #    For example, `admins (a] example.com`.
    862               #
    863               # * `domain:{domain}`: A Google Apps domain name that represents all the
    864               #    users of that domain. For example, `google.com` or `example.com`.
    865               #
    866             "A String",
    867           ],
    868         },
    869       ],
    870       "etag": "A String", # `etag` is used for optimistic concurrency control as a way to help
    871           # prevent simultaneous updates of a policy from overwriting each other.
    872           # It is strongly suggested that systems make use of the `etag` in the
    873           # read-modify-write cycle to perform policy updates in order to avoid race
    874           # conditions: An `etag` is returned in the response to `getIamPolicy`, and
    875           # systems are expected to put that etag in the request to `setIamPolicy` to
    876           # ensure that their change will be applied to the same version of the policy.
    877           #
    878           # If no `etag` is provided in the call to `setIamPolicy`, then the existing
    879           # policy is overwritten blindly.
    880       "version": 42, # Version of the `Policy`. The default version is 0.
    881     },
    882   }
    883 
    884   x__xgafv: string, V1 error format.
    885     Allowed values
    886       1 - v1 error format
    887       2 - v2 error format
    888 
    889 Returns:
    890   An object of the form:
    891 
    892     { # Defines an Identity and Access Management (IAM) policy. It is used to
    893       # specify access control policies for Cloud Platform resources.
    894       #
    895       #
    896       # A `Policy` consists of a list of `bindings`. A `Binding` binds a list of
    897       # `members` to a `role`, where the members can be user accounts, Google groups,
    898       # Google domains, and service accounts. A `role` is a named list of permissions
    899       # defined by IAM.
    900       #
    901       # **Example**
    902       #
    903       #     {
    904       #       "bindings": [
    905       #         {
    906       #           "role": "roles/owner",
    907       #           "members": [
    908       #             "user:mike (a] example.com",
    909       #             "group:admins (a] example.com",
    910       #             "domain:google.com",
    911       #             "serviceAccount:my-other-app (a] appspot.gserviceaccount.com",
    912       #           ]
    913       #         },
    914       #         {
    915       #           "role": "roles/viewer",
    916       #           "members": ["user:sean (a] example.com"]
    917       #         }
    918       #       ]
    919       #     }
    920       #
    921       # For a description of IAM and its features, see the
    922       # [IAM developer's guide](https://cloud.google.com/iam).
    923     "bindings": [ # Associates a list of `members` to a `role`.
    924         # Multiple `bindings` must not be specified for the same `role`.
    925         # `bindings` with no members will result in an error.
    926       { # Associates `members` with a `role`.
    927         "role": "A String", # Role that is assigned to `members`.
    928             # For example, `roles/viewer`, `roles/editor`, or `roles/owner`.
    929             # Required
    930         "members": [ # Specifies the identities requesting access for a Cloud Platform resource.
    931             # `members` can have the following values:
    932             #
    933             # * `allUsers`: A special identifier that represents anyone who is
    934             #    on the internet; with or without a Google account.
    935             #
    936             # * `allAuthenticatedUsers`: A special identifier that represents anyone
    937             #    who is authenticated with a Google account or a service account.
    938             #
    939             # * `user:{emailid}`: An email address that represents a specific Google
    940             #    account. For example, `alice (a] gmail.com` or `joe (a] example.com`.
    941             #
    942             #
    943             # * `serviceAccount:{emailid}`: An email address that represents a service
    944             #    account. For example, `my-other-app (a] appspot.gserviceaccount.com`.
    945             #
    946             # * `group:{emailid}`: An email address that represents a Google group.
    947             #    For example, `admins (a] example.com`.
    948             #
    949             # * `domain:{domain}`: A Google Apps domain name that represents all the
    950             #    users of that domain. For example, `google.com` or `example.com`.
    951             #
    952           "A String",
    953         ],
    954       },
    955     ],
    956     "etag": "A String", # `etag` is used for optimistic concurrency control as a way to help
    957         # prevent simultaneous updates of a policy from overwriting each other.
    958         # It is strongly suggested that systems make use of the `etag` in the
    959         # read-modify-write cycle to perform policy updates in order to avoid race
    960         # conditions: An `etag` is returned in the response to `getIamPolicy`, and
    961         # systems are expected to put that etag in the request to `setIamPolicy` to
    962         # ensure that their change will be applied to the same version of the policy.
    963         #
    964         # If no `etag` is provided in the call to `setIamPolicy`, then the existing
    965         # policy is overwritten blindly.
    966     "version": 42, # Version of the `Policy`. The default version is 0.
    967   }</pre>
    968 </div>
    969 
    970 <div class="method">
    971     <code class="details" id="testIamPermissions">testIamPermissions(resource, body, x__xgafv=None)</code>
    972   <pre>Returns permissions that a caller has on the specified resource.
    973 If the resource does not exist, this will return an empty set of
    974 permissions, not a NOT_FOUND error.
    975 
    976 Note: This operation is designed to be used for building permission-aware
    977 UIs and command-line tools, not for authorization checking. This operation
    978 may "fail open" without warning.
    979 
    980 Args:
    981   resource: string, REQUIRED: The resource for which the policy detail is being requested.
    982 See the operation documentation for the appropriate value for this field. (required)
    983   body: object, The request body. (required)
    984     The object takes the form of:
    985 
    986 { # Request message for `TestIamPermissions` method.
    987     "permissions": [ # The set of permissions to check for the `resource`. Permissions with
    988         # wildcards (such as '*' or 'storage.*') are not allowed. For more
    989         # information see
    990         # [IAM Overview](https://cloud.google.com/iam/docs/overview#permissions).
    991       "A String",
    992     ],
    993   }
    994 
    995   x__xgafv: string, V1 error format.
    996     Allowed values
    997       1 - v1 error format
    998       2 - v2 error format
    999 
   1000 Returns:
   1001   An object of the form:
   1002 
   1003     { # Response message for `TestIamPermissions` method.
   1004     "permissions": [ # A subset of `TestPermissionsRequest.permissions` that the caller is
   1005         # allowed.
   1006       "A String",
   1007     ],
   1008   }</pre>
   1009 </div>
   1010 
   1011 </body></html>