class_docstr: Type specification for `None` value.
code: def _batch(self, batch_size):
      return NoneTensorSpec()
  
imports: from tensorflow.python.framework import composite_tensor
  from tensorflow.python.framework import type_spec
  from tensorflow.python.framework import type_spec_registry
label_desc: Use image node_id 8 for calling the NoneTensorSpec obj's underlying member method code with example usage: obj._batch(batch_size) and returns: NoneTensorSpec