parameters: (filename)
docstring: Check the existence of file or dir.
docstring_summary: Check the existence of file or dir.
docstring_tokens: Check the existence of file or dir .
function: def check_existence(filename):
    """Check the existence of file or dir."""
    if not os.path.exists(filename):
      raise RuntimeError("%s not found. Are you under the TensorFlow source root"
                         " directory?")
function_tokens: def check_existence ( filename ) : if not os . path . exists ( filename ) : raise RuntimeError ( "%s not found. Are you under the TensorFlow source root" " directory?" )