human
Can you provide a Python program to determine if it is a power of two given the following:
Solve in Python:
Given an integer, write a function to determine if it is a power of two.

Example 1:

Input: 1
Output: true 
Explanation: 20 = 1

Example 2:

Input: 16
Output: true
Explanation: 24 = 16

Example 3:

Input: 218
Output: false
assistant
#Here is Python program to determine if it is a power of two.

class Solution:
     def isPowerOfTwo(self, n):
         """
         :type n: int
         :rtype: bool
         """
         return n > 0 and not (n & (n - 1))