def contract_1e(f1e, fcivec, norb, nelec, link_index=None, orbsym=[]): return direct_spin0.contract_1e(f1e, fcivec, norb, nelec, link_index)
def contract_1e(f1e, fcivec, norb, nelec, link_index=None, orbsym=None): return direct_spin0.contract_1e(f1e, fcivec, norb, nelec, link_index)