1 ((function length 2 (signature float 3 (parameters 4 (declare (in) float arg0)) 5 ((return (expression float abs (var_ref arg0))))) 6 7 (signature float 8 (parameters 9 (declare (in) vec2 arg0)) 10 ((return (expression float sqrt (expression float dot (var_ref arg0) (var_ref arg0)))))) 11 12 (signature float 13 (parameters 14 (declare (in) vec3 arg0)) 15 ((return (expression float sqrt (expression float dot (var_ref arg0) (var_ref arg0)))))) 16 17 (signature float 18 (parameters 19 (declare (in) vec4 arg0)) 20 ((return (expression float sqrt (expression float dot (var_ref arg0) (var_ref arg0)))))) 21 )) 22