import _hashlib


def new(mode: str) -> _hashlib.Hash:
    hash = _hashlib.Hash()
    hash.new(mode, None)
    return hash


def md5(data = None) -> _hashlib.Hash:
    hash = _hashlib.Hash()
    hash.new("md5", data)
    return hash


def sha1(data = None) -> _hashlib.Hash:
    hash = _hashlib.Hash()
    hash.new("sha1", data)
    return hash


def sha224(data = None) -> _hashlib.Hash:
    hash = _hashlib.Hash()
    hash.new("sha224", data)
    return hash


def sha256(data = None) -> _hashlib.Hash:
    hash = _hashlib.Hash()
    hash.new("sha256", data)
    return hash


def sha384(data = None) -> _hashlib.Hash:
    hash = _hashlib.Hash()
    hash.new("sha384", data)
    return hash


def sha512(data = None) -> _hashlib.Hash:
    hash = _hashlib.Hash()
    hash.new("sha512", data)
    return hash