Give more details about how the callback works about read-vinyl-file-stream HOT 2 OPEN

  [index]
    ✓ iterates all files
    ✓ writes vinyl files as the output
    ✓ can write content back to the file as a buffer
    ✓ can write content back to the file as a stream
    ✓ accepts string for new content
    ✓ accepts buffers for new content
    ✓ removes files from the vinyl stream if the new content is not a string or buffer
    ✓ exposes the original stream, so you can push whatever you want
    ✓ can optionally read streams to a content string
    ✓ can read a buffer file to buffer content
    ✓ can read a stream file to buffer content
    ✓ skips null vinyl files
    ✓ skips unknown vinyl files
    ✓ handles errors from the iterator callback
    ✓ handles errors from reading a vinyl stream file
    ✓ has an optional flush method
    ✓ can use the encoding parameter with the flush method