parameters: (op, _)
return_statement: return array_ops.zeros(array_ops.shape(x), dtype=x.dtype)
docstring: Returns 0.
docstring_summary: Returns 0.
docstring_tokens: Returns 0 .
function: def _SignGrad(op, _):
    """Returns 0."""
    x = op.inputs[0]
    return array_ops.zeros(array_ops.shape(x), dtype=x.dtype)
function_tokens: def _SignGrad ( op , _ ) : x = op . inputs [ 0 ] return array_ops . zeros ( array_ops . shape ( x ) , dtype = x . dtype )