'Returns the distance between the closest points on this Geometry
and the other. Units will be in those of the coordinate system of
the Geometry.'

def distance(self, other):

    if (not isinstance(other, GEOSGeometry)):
        raise TypeError('distance()    works    only    on    other    GEOS    Geometries.')
    return capi.geos_distance(self.ptr, other.ptr, byref(c_double()))
