Could you help with this programming?

Two Sum:

Given a list of integers, return the indices (as a Python set) of the two numbers that add up to a specific target. You may assume that each input will have at most one solution, and you may not use the same element twice. If there is no solution, you should return an empty set.

Given nums = [2, 7, 11, 15], target = 9, Because nums[0] + nums[1] = 2 + 7 = 9, return [0, 1].

def twossum(n, t): i = set()

return i