Module file 

Async file I/O helpers for large payloads.

Email attachments can be arbitrarily large, so file reads and writes go through async, chunked helpers here to avoid blocking the Tokio runtime. Also includes random-file generation for test fixtures.

Functions

generate_random_bytes

Generates random bytes that can be used to test the file system.

generate_random_file

Generates a random file with the given size in MB.

read_large_file

Reads a large file from the given path.