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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 spot(feature, **kwargs):
 """ Create parameters for a spot Generally, this will be used as input to the method argument in :meth:`phoebe.frontend.bundle.Bundle.add_feature` :parameter **kwargs: defaults for the values of any of the parameters :return: a :class:`phoebe.parameters.parameters.ParameterSet` """


    params = []

    params += [FloatParameter(qualifier="colat", value=kwargs.get('colat', 0.0), default_unit=u.deg, description='Colatitude of the center of the spot wrt spin axes')]
    params += [FloatParameter(qualifier="long", value=kwargs.get('long', 0.0), default_unit=u.deg, description='Longitude of the center of the spot wrt spin axis')]
    params += [FloatParameter(qualifier='radius', value=kwargs.get('radius', 1.0), default_unit=u.deg, description='Angular radius of the spot')]
    # params += [FloatParameter(qualifier='area', value=kwargs.get('area', 1.0), default_unit=u.solRad, description='Surface area of the spot')]

    params += [FloatParameter(qualifier='relteff', value=kwargs.get('relteff', 1.0), limits=(0.,None), default_unit=u.dimensionless_unscaled, description='Temperature of the spot relative to the intrinsic temperature')]
    # params += [FloatParameter(qualifier='teff', value=kwargs.get('teff', 10000), default_unit=u.K, description='Temperature of the spot')]

    constraints = []

    return ParameterSet(params), constraints