input: Write a function to determine if two integers are equal. The function should take two integers as input and return True if they are equal, otherwise return False.
  assert check_equality(10, 10)==True
  assert check_equality(5, 10)==False
  assert check_equality(0, 0)==True
  assert check_equality(-1, 1)==False
  assert check_equality(-5, -5)==True
output: def check_equality(a, b):
      return a == b