def weld_verts(bm: 'bmesh.types.BMesh', targetmap: dict):
    """Welds verts together (kind-of like remove doubles, merge, etc, all of which use or will use this bmop). You pass in mappings from vertices to the vertices they weld with. 

    :param bm: The bmesh to operate on. 
    :type bm: 'bmesh.types.BMesh'
    :param targetmap: Undocumented. 
    :type targetmap: dict
    """
    pass
