':param access_key: Access key.
:type access_key: ``str``
:param access_secret: Access secret.
:type access_secret: ``str``
:param version: API version.
:type version: ``str``'

def __init__(self, access_key, access_secret, version):

    self.access_key = access_key
    self.access_secret = access_secret
    self.version = version
