Convert this angle to the given AstroPy unit.

def to(self, unit):
        """Convert this angle to the given AstroPy unit."""
        from astropy.units import rad
        return (self.radians * rad).to(unit)

        # Or should this do:
        from astropy.coordinates import Angle
        from astropy.units import rad
        return Angle(self.radians, rad).to(unit)