A string to read from. If byteStart and byteEnd are not provided, reads the entire string. If byteStart is provided, reads from that index to the end of the string. If byteEnd is provided, reads from byteStart to byteEnd (exclusive). If both byteStart and byteEnd are provided, reads from byteStart to byteEnd (exclusive).
A promise that resolves to a Uint8Array containing the requested data.
Creates a seekable object from a string.