HTMLWebBaseLoader

The async caller should be used by subclasses to make any async calls, which will thus benefit from the concurrency and retry logic.

Timeout for this call in milliseconds.

A method that loads the text file or blob and returns a promise that resolves to an array of Document instances. It reads the text from the file or blob using the readFile function from the node:fs/promises module or the text() method of the blob. It then parses the text using the parse() method and creates a Document instance for each parsed page. The metadata includes the source of the text (file path or blob) and, if there are multiple pages, the line number of each page.