Need a functionin python 3 to approximate pi.

the approximate's answer is 3.1415924536

can't loop/ run to long

approximate_pi () ---> float: a. This function accepts no input and returns the approximate of Pi ( a ). The number should be rounded to 10 decimal digits after the decimal point. The number is calculated as: (-1)" = 4* no 2n +1 The program will expand the series until the absolute value of the next term in the series is less than 1.0e-7 (the specified epsilon); that term will not be included in the sum. b. Parameters: no parameters Returns : float d. The function displays nothing