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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 orbit(self, orbit):
 """Initialize the propagator Args: orbit (Orbit) """


        self._orbit = orbit
        tle = Tle.from_orbit(orbit)
        lines = tle.text.splitlines()

        if len(lines) == 3:
            _, line1, line2 = lines
        else:
            line1, line2 = lines

        self.tle = twoline2rv(line1, line2, wgs72)