def remove_doubles(threshold: float=0.02, use_unselected: bool=False):
    """Selected UV vertices that are within a radius of each other are welded together 

    :param threshold: Merge Distance, Maximum distance between welded vertices 
    :type threshold: float
    :param use_unselected: Unselected, Merge selected to other unselected vertices 
    :type use_unselected: bool
    """
    pass
