Function generate_completion 

pub fn generate_completion<W: Write>(shell: Shell, writer: &mut W)

Generates shell completion script and writes it to the provided writer.

:param shell: Target shell (e.g., Fish, Bash, Zsh). :param writer: Destination stream implementing Write.

Example

use clap_complete::Shell;
use git_claw::workflow::completion::generate_completion;

let mut buffer = Vec::new();
generate_completion(Shell::Fish, &mut buffer);
let output = String::from_utf8(buffer).expect("valid utf-8");
assert!(output.contains("complete -c git-claw"));