OptionalblockWhen directory contents are listed, by default the root node of each entry is fetched to decode the UnixFS metadata and know if the entry is a file or a directory. This can result in fetching extra data which may not be desirable, depending on your application.
Pass false here to only return the CID and the name of the entry and not any extended metadata.
OptionallengthAn optional length to read.
If the CID resolves to a file this will be the number of bytes read from the file, otherwise if it's a directory it will be the number of directory entries read from the directory listing. (default: undefined)
OptionaloffsetAn optional offset to start reading at.
If the CID resolves to a file this will be a byte offset within that file, otherwise if it's a directory it will be a directory entry offset within the directory listing. (default: undefined)
OptionalonOptionalsignalThis signal can be used to abort any long-lived operations such as fetching blocks from the network. (default: undefined)
When a DAG layer is encountered, all child nodes are loaded in parallel but processed as they arrive. This allows us to load sibling nodes in advance of yielding their bytes. Pass a value here to control the number of blocks loaded in parallel. If a strict depth-first traversal is required, this value should be set to
1, otherwise the traversal order will tend to resemble a breadth-first fan-out and yield a have stable ordering. (default: undefined)