Missing documentation in `fs.StatFs`

Affected URL(s)

https://nodejs.org/api/fs.html#class-fsstatfs

Description of the problem

• statfs.bsize fails to mention if the size is reported in bits or bytes
• While statfs.bavail and statfs.bfree can be used to calculate available and free space, it would be appropriate to put an example on how to use them Example:

  import { statfs } from "fs/promises"
  const statsfs = await statfs("/tmp")
  const available_bits_or_bytes_not_documented = statsfs.bsize * statsfs.bavail
  

• Similarly, statfs.blocks and statfs.files would strongly benefit from an example
• What's statfs.type and why is it a number?