parameters: (self)
return_statement: return self.size
docstring: Return number of columns (using underlying matrix).
docstring_summary: Return number of columns (using underlying matrix).
docstring_tokens: Return number of columns ( using underlying matrix ) .
function: def cols(self):
          """Return number of columns (using underlying matrix)."""
          return self.size
function_tokens: def cols ( self ) : return self . size