from lxml import etree

from zeep import ns


def xsi_ns(localname):
    return etree.QName(ns.XSI, localname)


def xsd_ns(localname):
    return etree.QName(ns.XSD, localname)


class _StaticIdentity(object):
    def __init__(self, val):
        self.__value__ = val

    def __repr__(self):
        return self.__value__


NotSet = _StaticIdentity('NotSet')
SkipValue = _StaticIdentity('SkipValue')
Nil = _StaticIdentity('Nil')


AUTO_IMPORT_NAMESPACES = [
    'http://schemas.xmlsoap.org/soap/encoding/'
]