message: fix completer function return type as [string[], string]
diff: @@ -2,11 +2,11 @@ import { types as shellTypes } from 'mongosh-shell-api';
  /**
  * Return complete suggestions given currently typed line
  *
  - * @param {any} output - The output.
  + * @param {string} Line - Current user input.
  *
  - * @returns {string} The output.
  + * @returns {array} Matching Completions, Current User Input.
  */
  -function completer(line: string): any {
  +function completer(line: string): [string[], string] {
  // keep initial line param intact to always return in return statement
  // check for contents of line with:
  const splitLine = line.split('.');
  