def METHOD_NAME():
    # Unit test from original exp weatherer
    grid = RasterModelGrid((3, 3), 1.0)
    grid.add_zeros("soil__depth", at="node")
    ew = ExponentialWeathererIntegrated(grid, soil_production__maximum_rate=0.0001)
    ew.maximum_weathering_rate = 0.0004
    assert ew.maximum_weathering_rate == 0.0004