# Functions
CheckDeleted checks the error to see if it's a 404 (Not Found) and, if so, sets the resource ID to the empty string instead of throwing an error.
Provider returns a schema.Provider for OpenStack.
ServerV2StateRefreshFunc returns a resource.StateRefreshFunc that is used to watch an OpenStack instance.
VolumeV1StateRefreshFunc returns a resource.StateRefreshFunc that is used to watch an OpenStack volume.