docstr: Wrapper for regular tensorflow placeholder.
docstr_tok: ["Wrapper","for","regular","tensorflow","placeholder","."]
code: def __init__(self, placeholder):
      """Wrapper for regular tensorflow placeholder."""
      super().__init__(placeholder.name)
      self._placeholder = placeholder
  
file_path: baselines/baselines/deepq/utils.py
imports: from baselines.common.input import observation_input
  from baselines.common.tf_util import adjust_shape
label_desc: Use image node_id 1 to create a new PlaceholderTfInput object from inherited base classes: TfInput with example: obj = PlaceholderTfInput(placeholder)