class_docstr: This is an empty class that inherit from A2
      
class_docstr_tok: ["This","is","an","empty","class","that","inherit","from","A2"]
code: def __init__(self, x0: int, y1: float = 1.0):
      A2.__init__(self, x0, y1=y1)
  
imports: import sys
  import unittest
  from tick.base import Base
  from tick.base.build.base import A0
label_desc: Use image node_id 1 to create a new A3 object from inherited base classes: A2 with example: obj = A3(x0, y1)