input: Write a function to create a Python list comprehension that generates the squared values of a given list of numbers. The function should return the list comprehension as a string.
  assert generate_squared_list_comprehension([1, 2, 3, 5, 8, 13])=="[x*x for x in [1, 2, 3, 5, 8, 13]]"
  assert generate_squared_list_comprehension([2, 4, 6, 8, 10])=="[x*x for x in [2, 4, 6, 8, 10]]"
  assert generate_squared_list_comprehension([-3, -2, -1, 0, 1, 2, 3])=="[x*x for x in [-3, -2, -1, 0, 1, 2, 3]]"
  assert generate_squared_list_comprehension([])=="[x*x for x in []]"
  assert generate_squared_list_comprehension([1])=="[x*x for x in [1]]"
output: def generate_squared_list_comprehension(numbers):
      return f"[x*x for x in {numbers}]"