import time
import functools
from typing import Tuple, Any

def time_execution(func):
    """
    Decorator to measure execution time of a function.
    Returns a tuple (result, execution_time_in_seconds).
    """
    @functools.wraps(func)
    def wrapper(*args, **kwargs) -> Tuple[Any, float]:
        start_time = time.perf_counter()
        result = func(*args, **kwargs)
        end_time = time.perf_counter()
        execution_time = end_time - start_time
        return result, execution_time
    return wrapper