def METHOD_NAME():
    form = ak.forms.from_dict(
        {
            "class": "RecordArray",
            "fields": [f"x_{i}" for i in range(10_000)],
            "contents": ["int64"] * 10_000,
        }
    )
    assert form.select_columns(["*"]) == form
    assert form.select_columns(["x*"]) == form
    assert form.select_columns(["x_[0-9]"]) == ak.forms.from_dict(
        {
            "class": "RecordArray",
            "fields": [
                "x_0",
                "x_1",
                "x_2",
                "x_3",
                "x_4",
                "x_5",
                "x_6",
                "x_7",
                "x_8",
                "x_9",
            ],
            "contents": [
                "int64",
                "int64",
                "int64",
                "int64",
                "int64",
                "int64",
                "int64",
                "int64",
                "int64",
                "int64",
            ],
        }
    )