parameters: (self)
docstring: Number of batch in the Sequence.
  
      Returns:
          The number of batches in the Sequence.
docstring_summary: Number of batch in the Sequence.
docstring_tokens: Number of batch in the Sequence .
function: def __len__(self):
      """Number of batch in the Sequence.
  
      Returns:
          The number of batches in the Sequence.
      """
      raise NotImplementedError
function_tokens: def __len__ ( self ) : raise NotImplementedError