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use

io.file.use

this opens a file with the given mode.
on success it instates effects:

file.this.open,
(io.buffered file.this.file_mutate).reader and
(io.buffered file.this.file_mutate).writer.

These can then be used in `code()`.

usage example:

Type Parameters

Arguments

file_name
 io.path
0.099dev (GIT hash bf4ead724d7f3fdab43a87b63c17477c916c8995)
last changed: 2026-11-04