def get_user_by_email(email, **kwargs):
	try:
		kwargs.update(dict(email=email))
		return user_from_xml(get(path=resource_path, params_dict=kwargs))
	except ResourceNotFound:
		return None
def get_user_by_id(id, **kwargs):
	path = "{0}/{1}".format(resource_path, id)
	return user_from_xml(get(path=path, params_dict=kwargs))