Function missing_program_message 

pub fn missing_program_message() -> String

What: The refusal printed when git-lfs is not on PATH. Why: Without the program the objects cannot be uploaded, and pushing anyway would publish pointers the server cannot serve; every valid way forward is named, including leaving LFS if the repository does not need it.

In TS you’d write (pseudocode):

`cli-git: this push was stopped before it sent anything: ...`