Write a python function to check whether the given number is fibonacci or not

Solution

def fiboacci_number_check(n):
    if(isinstance(n,int)):
        result = list(filter(lambda num : int(math.sqrt(num)) * int(math.sqrt(num)) == num, [5*n*n + 4,5*n*n - 4] ))
        return bool(result) 
    else:
        raise TypeError("Input should be of type Int")