'Enable an installed plugin.
Args:
name (string): The name of the plugin. The ``:latest`` tag is
optional, and is the default if omitted.
timeout (int): Operation timeout (in seconds). Default: 0
Returns:
``True`` if successful'

@utils.minimum_version('1.25')
def enable_plugin(self, name, timeout=0):

    url = self._url('/plugins/{0}/enable', name)
    params = {'timeout': timeout}
    res = self._post(url, params=params)
    self._raise_for_status(res)
    return True
