input: Write a function to compute the sum of all values in a given dictionary with string keys and integer values. The function should take the dictionary as input and return the sum as an integer.
  assert compute_dict_sum({"a": 5, "b": 10, "c": 15})==30
  assert compute_dict_sum({"x": 3, "y": 7})==10
  assert compute_dict_sum({"p": 0, "q": 0})==0
  assert compute_dict_sum({})==0
output: def compute_dict_sum(d):
      return sum(d.values())