verifyAllCombinations() functions not working correctly with asynchronous code

verifyAllCombinations() functions are not managing async, it can only return [object Promise] when the passed function is async.

Example:

Code:

    const pagesOptions = [[], [y,y], [x,y,z]];

    verifyAllCombinations1(async (option) => {
      await asynchronousTreatment();
      return option;
    }, pagesOptions);

Actual:

[] => [object Promise]
[x,y] => [object Promise]
[x,y,z] => [object Promise]

Expected:

[] =>
[x,y] => x,y
[x,y,z] => x,y,z

Start by locating verifyAllCombinations() and its numbered variants in the TypeScript source, then inspect how they handle the callback result. Verify that an async callback produces resolved values matching the example rather than Promise representations, including the empty and multi-item combinations.