code: def __init__(self):
      self.keys = []
  
imports: from __future__ import unicode_literals
  from prompt_toolkit.terminal.vt100_input import InputStream
  from prompt_toolkit.keys import Keys
  import pytest
label_desc: Use image node_id 1 to create a new _ProcessorMock object from inherited base classes: object with example: obj = _ProcessorMock()