def METHOD_NAME():
    # Test custom eq controls.
    cosmo = [ccl.CosmologyVanillaLCDM() for _ in range(2)]
    assert id(cosmo[0]) != id(cosmo[1])
    ccl.CustomEq.disable()
    assert cosmo[0] != cosmo[1]
    ccl.CustomEq.enable()
    assert cosmo[0] == cosmo[1]