You need to implement a decorator that caches the result of a method based on its input arguments.

To implement a decorator for caching the result of a method based on input arguments in Python, you can use a dictionary to store the results. Here's an example of a simple decorator:

def cache_decorator(func):
    cache = {}
    def wrapper(*args, **kwargs):
        key = (args, tuple(sorted(kwargs.items())))
        if key not in cache:
            cache[key] = func(*args, **kwargs)
        return cache[key]
    return wrapper

# Example usage
@cache_decorator
def compute(x, y):
    print("Calculating...")
    return x + y

print(compute(1, 2))  # Calculating... 
3
print(compute(1, 2))  # 3 (retrieved from cache, no recalculation)

This decorator stores the results of function calls with specific arguments and returns the cached result on subsequent calls with the same parameters.