1 This library is a subset of IntelliJ IDEA's PSI API, extracted 2 via the psi extration tool in tools/base/misc/psi-extractor/. 3 4 This jar is extracted into the tools/base/lint/libs/uast 5 library, which is a Java library packaged along with the 6 rest of the tools libraries such that they can be published 7 and signed using Gradle's machinery. 8