code: def estimate_size(cls, ctx, op):
      raise NotImplementedError
  
imports: import numpy
  import pandas
  import pytest
  from ....dataframe import core
  from ...None import OutputType
  from ..None import Operand, TileableOperandMixin, execute, estimate_size, ShuffleProxy
label_desc: Use image node_id 2 for calling the MyOperand2 obj's underlying member method code with example usage: obj.estimate_size(cls, ctx, op) without return types