Have you read the whole section? > Documentation for parameters and return values ([23]) > Let IDEs show what types a function expects and returns ([16]) > F

Have you read the whole section? > Documentation for parameters and return values ([23]) > Let IDEs show what types a function expects and returns ([16]) > For example, one library might use string-based annotations to provide improved help messages, like so: def compile(source: "something compilable", filename: "where the compilable thing comes from", mode: "is this a single statement or a suite?"):