code: def is_return(instr):
      return "RETURN_VALUE" == instr
  
imports: from h2o.utils.compatibility import *
  import dis
  import inspect
  import sys
  from .None import h2o
  from .expr import ExprNode, ASTId
label_desc: Use image node_id 26 for calling a global function with example usage: is_return(instr) and returns: unknown