code: def absolute_vorticity(u, v, dx, dy, lats, dim_order='yx'):
      
      f = coriolis_parameter(lats)
      relative_vorticity = vorticity(u, v, dx, dy, dim_order=dim_order)
      return relative_vorticity + f
docs: Calculate the absolute vorticity of the horizontal wind.
  
      Parameters
      ----------
      u : (M, N) ndarray
          x component of the wind
      v : (M, N) ndarray
          y component of the wind
      dx : float or ndarray
          The grid spacing(s) in the x-direction. If an array, there should be one item less than
          the size of `u` along the applicable axis.
      dy : float or ndarray
          The grid spacing(s) in the y-direction. If an array, there should be one item less than
          the size of `u` along the applicable axis.
      lats : (M, N) ndarray
          latitudes of the wind data in radians or with appropriate unit information attached
  
      Returns
      -------
      (M, N) ndarray
          absolute vorticity
  
      Notes
      -----
      If inputs have more than two dimensions, they are assumed to have either leading dimensions
      of (x, y) or trailing dimensions of (y, x), depending on the value of ``dim_order``.