code: def argsort(self, axis=-1, kind="quicksort", order=None):
          
          return self.view(np.ndarray).argsort(axis, kind, order)
docs: Returns the indices that would sort the array.
  
          See the documentation of ndarray.argsort for details about the keyword
          arguments.
  
          Example
          -------
          >>> from unyt import km
          >>> data = [3, 8, 7]*km
          >>> print(np.argsort(data))
          [0 2 1]
          >>> print(data.argsort())
          [0 2 1]