class_docstr: Error found while interpreting AST.
class_docstr_tok: ["Error","found","while","interpreting","AST","."]
code: def __init__(self, explanation=""):
      self.cause = sys.exc_info()
      self.explanation = explanation
  
imports: import sys
  import ast
  import py
  from py._code.assertion import _format_explanation, BuiltinAssertionError
label_desc: Use image node_id 1 to create a new Failure object from inherited base classes: Exception with example: obj = Failure(explanation)