Function nu_command::operate

pub fn operate<F>(
    engine_state: &EngineState,
    stack: &mut Stack,
    call: &Call<'_>,
    input: PipelineData,
    case_operation: &'static F,
) -> Result<PipelineData, ShellError>
where
    F: Fn(&str) -> String + Send + Sync + 'static,