'Constructs the handlers.
:type host: string
:param host: The host to which the request is being sent.
:type config: boto.pyami.Config
:param config: Boto configuration.
:type provider: boto.provider.Provider
:param provider: Provider details.
Raises:
NotReadyToAuthenticate: if this handler is not willing to
authenticate for the given provider and config.'

def __init__(self, host, config, provider):

    pass
