file.md

### File Functions

#### readfile

Reads the file at path provided as argument, and returns its contents
as bytes.

#### readtextfile

Reads the file at path provided as argument, and returns its contents
as a string.

#### writefile

Accept a file path as the first argument, and content as a second argument
and writes content to the file at path. Any existing content is truncated.

Content can be either bytes or text.