How to use the pdbpp.local.GLOBAL_PDB.complete function in pdbpp

def check_completions():
            # Patch readline to return expected results for "!a_va".
            monkeypatch_readline("!a_va", 0, 5)
            assert pdbpp.local.GLOBAL_PDB.complete("a_va", 0) == "a_var"

            # Patch readline to return expected results for "list(a_va".
            monkeypatch_readline("list(a_va", 5, 9)
            assert pdbpp.local.GLOBAL_PDB.complete("a_va", 0) == "a_var"
            return True

def check_completions():
            # Patch readline to return expected results for "wher".
            monkeypatch_readline("wher", 0, 4)
            assert get_completions("wher") == ["where"]

            if sys.version_info > (3, ):
                # Patch readline to return expected results for "disable ".
                monkeypatch_readline("disable", 8, 8)

                # NOTE: number depends on bpb.Breakpoint class state, just ensure that
                #       is a number.
                completion = pdbpp.local.GLOBAL_PDB.complete("", 0)
                assert int(completion) > 0

                # Patch readline to return expected results for "p ".
                monkeypatch_readline("p ", 2, 2)
                comps = get_completions("")
                assert "where" in comps

                # Dunder members get completed only on second invocation.
                assert "__name__" not in comps
                comps = get_completions("")
                assert "__name__" in comps

            # Patch readline to return expected results for "help ".
            monkeypatch_readline("help ", 5, 5)
            comps = get_completions("")
            assert "help" in comps