Develop a Python function that checks if a specific element is contained in a list.
The task is to create a Python function that takes in a list of integers and a single integer value. The function should check if the single integer value is present in the list. If it is, it should return `True`. If it's not, it should return `False`. Use the Python `in` keyword to check if an element is in a list. The `in` keyword checks if a value is present in a sequence (like a list or string). ### Parameters - `lst`: A list of integers. - `el`: An integer. The function should check whether this integer is present in `lst`. ### Return Value - The function should return `True` if `el` is present in `lst`. Otherwise, it should return `False`. ### Examples ```python # 3 is in the list print(solution([1, 2, 3, 4, 5], 3)) # Returns: True # 3 is not in the list. print(solution([1, 1, 2, 1, 1], 3)) # Returns: False # 5 is in the list. print(solution([5, 5, 5, 6], 5)) # Returns: True # The list is empty. print(solution([], 5)) # Returns: False ```