Group (zarr-lwt.Zarr_lwt.Storage.FilesystemStore.Group)

val create : ?attrs:Yojson.Safe.t -> t -> Zarr.Node.Group.t -> unit Lwt.t

create ?attrs t node creates a group node in store t containing attributes attrs. This is a no-op if node is already a member of this store.

val metadata : t -> Zarr.Node.Group.t -> Zarr.Metadata.Group.t Lwt.t

metadata node t returns the metadata of group node node.

raises Key_not_found
if node is not a member of store t.

val children : 
  t ->
  Zarr.Node.Group.t ->
  (Zarr.Node.Array.t list * Zarr.Node.Group.t list) Lwt.t

children t n returns a tuple of child nodes of group node n. This operation returns a pair of empty lists if node n has no children or is not a member of store t.

raises Parse_error
if any child node has invalid node_type metadata.

val delete : t -> Zarr.Node.Group.t -> unit Lwt.t

delete t n erases group node n from store t. This also erases all child nodes of n. If node n is not a member of store t then this is a no-op.

val exists : t -> Zarr.Node.Group.t -> bool Lwt.t

exists t n returns true if group node n is a member of store t and false otherwise.

val rename : t -> Zarr.Node.Group.t -> string -> unit Lwt.t

rename t g name changes the name of group node g in store t to name.

raises Key_not_found
if g is not a member of store t.

raises Renaming_root
if g is the store's root node.

raises Node_invariant
if name is an invalid node name.