code: def get_parameters(self, index):
  
          
          if index < 0 or index >= len(self._types):
              raise ValueError("Index for getting parameters associated with"
                               " order parameter calculation out-of-bounds!")
          return self._params[index]
docs: Returns list of floats that represents
          the parameters associated
          with calculation of the order
          parameter that was defined at the index provided.
          Attention: the parameters do not need to equal those originally
          inputted because of processing out of efficiency reasons.
  
          Args:
              index (int):
                  index of order parameter for which associated parameters
                  are to be returned.
          Returns:
              [float]: parameters of a given OP.