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Asserts that the given
tensor is a scalar (i.e. zero-dimensional).
tf.compat.v1.assert_scalar( tensor, name=None, message=None )
This function raises
ValueError unless it can be certain that the given
tensor is a scalar.
ValueError is also raised if the shape of
name: A name for this operation. Defaults to "assert_scalar"
message: A string to prefix to the default message.
The input tensor (potentially converted to a
ValueError: If the tensor is not scalar (rank 0), or if its shape is unknown.