parameters: (self)
return_statement: return self.vol.count
docstring: Returns the length of the array.
docstring_summary: Returns the length of the array.
docstring_tokens: Returns the length of the array .
function: def __len__(self) -> int:
          """Returns the length of the array."""
          return self.vol.count
function_tokens: def __len__ ( self ) -> int : return self . vol . count