transformFile method
Transforms a file into non-overlapping chunks using Chunky's file stringers.
Stringers may emit file content line by line, so this method restores line breaks between emitted pieces before chunking.
@param file The file to ingest @return A stream of non-overlapping chunks
Implementation
Stream<Chunk> transformFile(File file) =>
transform(FileStringer.streamFile(file).map((piece) => "$piece\n"));