code: def degrees(radians=0, arcminutes=0, arcseconds=0):
      
      deg = 0.
      if radians:
          deg = math.degrees(radians)
      if arcminutes:
          deg += arcminutes / arcmin(degrees=1.)
      if arcseconds:
          deg += arcseconds / arcsec(degrees=1.)
      return deg
docs: TODO docs.