What is the shortest/fastest way to extract a function’s documentation by name?

[fregante]

Given index.ts and the known "main" function name:

/**
 * Init the app
 * @example main()
 */
export function main(): void {};

What is the shortest amount of code to extract the function’s documentation? I looked at the demo and it seems quite verbose to just extract some data.

Side note: the demo requires python2 to be available, which is not ideal and requires that I edit it manually