def METHOD_NAME():
    # Happy path test for returning input dictionary unaltered if no "mw_per_bin" or "mw_per_q" key is present
    data = pd.DataFrame({"mw": [10, 20, 30]})
    b = {"other_key": "value"}
    expected_output = {"other_key": "value"}
    assert num_bins_from_capacity(data, b) == expected_output