input: from typing import Any
  
  
  def calculate_sum_using_lambda(a: Any, b: Any) -> Any:
      """ Calculate the sum of two variables using a lambda function.
      >>> calculate_sum_using_lambda(3, 4)
      7
      >>> calculate_sum_using_lambda(5, 5)
      10
      """
      sum_func = lambda x, y: x + y
      return sum_func(a, b)
output:     sum_func = lambda x, y: x + y
      return sum_func(a, b)