code: def map_E_to_height(self, alat, alon, height, newheight, E):
          
  
          return self._map_EV_to_height(alat, alon, height, newheight, E, 'E')
docs: Performs mapping of electric field along the magnetic field.
  
          It is assumed that the electric field is perpendicular to B.
  
          Parameters
          ==========
          alat : (N,) array_like or float
              Modified apex latitude
          alon : (N,) array_like or float
              Modified apex longitude
          height : (N,) array_like or float
              Source altitude in km
          newheight : (N,) array_like or float
              Destination altitude in km
          E : (3,) or (3, N) array_like
              Electric field (at `alat`, `alon`, `height`) in geodetic east,
              north, and up components
  
          Returns
          =======
          E : (3, N) or (3,) ndarray
              The electric field at `newheight` (geodetic east, north, and up
              components)