How to use the astroplan.target.FixedTarget function in astroplan

def dec(self):
        """
        Declination.
        """
        if isinstance(self, FixedTarget):
            return self.coord.dec
        raise NotImplementedError()

and the `--remote-data` option isn't used.

    The way this setup works is that for functionality that usually requires
    internet access, but has mocks in place, it is possible to write the test
    without adding a `@remote_data` decorator, and `py.test` will do the right
    thing when running the tests:

    1. Access the internet and use the normal code if `--remote-data` is used
    2. Not access the internet and use the mock code if `--remote-data` is not used

    Both of these cases are tested on travis-ci.
    """
    from .target import FixedTarget
    from astropy.coordinates import EarthLocation

    if not hasattr(FixedTarget, '_real_from_name'):
        FixedTarget._real_from_name = FixedTarget.from_name
        FixedTarget.from_name = FixedTarget._from_name_mock

    if not hasattr(EarthLocation, '_real_of_site'):
        EarthLocation._real_of_site = EarthLocation.of_site
        EarthLocation.of_site = EarthLocation_mock.of_site_mock