write_lines_cleanup: Write lines to a file with deferred cleanup
In iiasa/testGAMS: What the Package Does (One Line, Title Case)

Truncates or creates the file before writing, and sets deferred deletion of the file to occur when the specified environment is destroyed. By default, the invoking environment is set.

1	write_lines_cleanup(path, ..., env = parent.frame())

`path`	Path of the file to create.
`...`	One or more character vectors of lines to write, NULLs are skipped.
`env`	Environment to set `withr::defer()` cleanup on.