type flexVolumeMounter … var _ … // SetUp creates new directory. func (f *flexVolumeMounter) SetUp(mounterArgs volume.MounterArgs) error { … } // SetUpAt creates new directory. func (f *flexVolumeMounter) SetUpAt(dir string, mounterArgs volume.MounterArgs) error { … } // GetAttributes get the flex volume attributes. The attributes will be queried // using plugin callout after we finalize the callout syntax. func (f *flexVolumeMounter) GetAttributes() volume.Attributes { … }