Please write in Python 3

1. Write a function threshold(values, goal) that behaves as follows. The first parameter is a sequence of numbers. The second parameter is a single positive number. The function is to return the smallest possible integer n such that the sum of the first n numbers in the sequence is greater than or equal to goal. For example, threshold ([5, 3, 8, 2, 9, 1], 17) should return 4 because the goal can be achieved by the sum of the first four values (5+3+8+2) If the goal is unachievable, the function should return 0