#[repr(C)]
pub struct GVolumeIface {
    pub g_iface: GTypeInterface,
    pub changed: Option<unsafe extern "C" fn(_: *mut GVolume)>,
    pub removed: Option<unsafe extern "C" fn(_: *mut GVolume)>,
    pub get_name: Option<unsafe extern "C" fn(_: *mut GVolume) -> *const c_char>,
    pub get_icon: Option<unsafe extern "C" fn(_: *mut GVolume) -> *mut GIcon>,
    pub get_uuid: Option<unsafe extern "C" fn(_: *mut GVolume) -> *const c_char>,
    pub get_drive: Option<unsafe extern "C" fn(_: *mut GVolume) -> *mut GDrive>,
    pub get_mount: Option<unsafe extern "C" fn(_: *mut GVolume) -> *mut GMount>,
    pub can_mount: Option<unsafe extern "C" fn(_: *mut GVolume) -> gboolean>,
    pub can_eject: Option<unsafe extern "C" fn(_: *mut GVolume) -> gboolean>,
    pub mount_fn: Option<unsafe extern "C" fn(_: *mut GVolume, _: GMountMountFlags, _: *mut GMountOperation, _: *mut GCancellable, _: GAsyncReadyCallback, _: gpointer)>,
    pub mount_finish: Option<unsafe extern "C" fn(_: *mut GVolume, _: *mut GAsyncResult, _: *mut *mut GError) -> gboolean>,
    pub eject: Option<unsafe extern "C" fn(_: *mut GVolume, _: GMountUnmountFlags, _: *mut GCancellable, _: GAsyncReadyCallback, _: gpointer)>,
    pub eject_finish: Option<unsafe extern "C" fn(_: *mut GVolume, _: *mut GAsyncResult, _: *mut *mut GError) -> gboolean>,
    pub get_identifier: Option<unsafe extern "C" fn(_: *mut GVolume, _: *const c_char) -> *mut c_char>,
    pub enumerate_identifiers: Option<unsafe extern "C" fn(_: *mut GVolume) -> *mut *mut c_char>,
    pub should_automount: Option<unsafe extern "C" fn(_: *mut GVolume) -> gboolean>,
    pub get_activation_root: Option<unsafe extern "C" fn(_: *mut GVolume) -> *mut GFile>,
    pub eject_with_operation: Option<unsafe extern "C" fn(_: *mut GVolume, _: GMountUnmountFlags, _: *mut GMountOperation, _: *mut GCancellable, _: GAsyncReadyCallback, _: gpointer)>,
    pub eject_with_operation_finish: Option<unsafe extern "C" fn(_: *mut GVolume, _: *mut GAsyncResult, _: *mut *mut GError) -> gboolean>,
    pub get_sort_key: Option<unsafe extern "C" fn(_: *mut GVolume) -> *const c_char>,
    pub get_symbolic_icon: Option<unsafe extern "C" fn(_: *mut GVolume) -> *mut GIcon>,
}
Fields
                           
                           g_iface: GTypeInterface
                           
                           
                           changed: Option<unsafe extern "C" fn(_: *mut GVolume)>
                           
                           
                           removed: Option<unsafe extern "C" fn(_: *mut GVolume)>
                           
                           
                           get_name: Option<unsafe extern "C" fn(_: *mut GVolume) -> *const c_char>
                           
                           
                           get_icon: Option<unsafe extern "C" fn(_: *mut GVolume) -> *mut GIcon>
                           
                           
                           get_uuid: Option<unsafe extern "C" fn(_: *mut GVolume) -> *const c_char>
                           
                           
                           get_drive: Option<unsafe extern "C" fn(_: *mut GVolume) -> *mut GDrive>
                           
                           
                           get_mount: Option<unsafe extern "C" fn(_: *mut GVolume) -> *mut GMount>
                           
                           
                           can_mount: Option<unsafe extern "C" fn(_: *mut GVolume) -> gboolean>
                           
                           
                           can_eject: Option<unsafe extern "C" fn(_: *mut GVolume) -> gboolean>
                           
                           
                           mount_fn: Option<unsafe extern "C" fn(_: *mut GVolume, _: GMountMountFlags, _: *mut GMountOperation, _: *mut GCancellable, _: GAsyncReadyCallback, _: gpointer)>
                           
                           
                           mount_finish: Option<unsafe extern "C" fn(_: *mut GVolume, _: *mut GAsyncResult, _: *mut *mut GError) -> gboolean>
                           
                           
                           eject: Option<unsafe extern "C" fn(_: *mut GVolume, _: GMountUnmountFlags, _: *mut GCancellable, _: GAsyncReadyCallback, _: gpointer)>
                           
                           
                           eject_finish: Option<unsafe extern "C" fn(_: *mut GVolume, _: *mut GAsyncResult, _: *mut *mut GError) -> gboolean>
                           
                           
                           get_identifier: Option<unsafe extern "C" fn(_: *mut GVolume, _: *const c_char) -> *mut c_char>
                           
                           
                           enumerate_identifiers: Option<unsafe extern "C" fn(_: *mut GVolume) -> *mut *mut c_char>
                           
                           
                           should_automount: Option<unsafe extern "C" fn(_: *mut GVolume) -> gboolean>
                           
                           
                           get_activation_root: Option<unsafe extern "C" fn(_: *mut GVolume) -> *mut GFile>
                           
                           
                           eject_with_operation: Option<unsafe extern "C" fn(_: *mut GVolume, _: GMountUnmountFlags, _: *mut GMountOperation, _: *mut GCancellable, _: GAsyncReadyCallback, _: gpointer)>
                           
                           
                           eject_with_operation_finish: Option<unsafe extern "C" fn(_: *mut GVolume, _: *mut GAsyncResult, _: *mut *mut GError) -> gboolean>
                           
                           
                           get_sort_key: Option<unsafe extern "C" fn(_: *mut GVolume) -> *const c_char>
                           
                           
                           get_symbolic_icon: Option<unsafe extern "C" fn(_: *mut GVolume) -> *mut GIcon>