The name of the snippet.
The content of the snippet.
The description for the snippet.
The visibility of the snippet, either "Public" or "Private".
Optional
update: booleanOptional flag indicating whether to update an existing snippet (default is undefined).
The Gist ID of the created or updated snippet.
Creates or updates a GitHub Gist with the provided snippet details. If the
update
parameter is provided and true, the snippet is updated; otherwise, a new snippet is created.