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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_beamarea_pix(self, ra, dec):
 """ Calculate the beam area in square pixels. Parameters ra, dec : float The sky coordinates at which the calculation is made dec Returns ------- area : float The beam area in square pixels. """

        parea = abs(self.pixscale[0] * self.pixscale[1])  # in deg**2 at reference coords
        barea = self.get_beamarea_deg2(ra, dec)
        return barea / parea