input: Write a python function to sort a list of dictionaries in ascending order by a specified key.
  assert sort_list_of_dicts_asc([{'name': 'John', 'age': 32}, {'name': 'Jane', 'age': 44}, {'name': 'Doe', 'age': 22}], 'age') == [{'name': 'Doe', 'age': 22}, {'name': 'John', 'age': 32}, {'name': 'Jane', 'age': 44}]
  assert sort_list_of_dicts_asc([{'name': 'Alice', 'score': 90}, {'name': 'Bob', 'score': 70}, {'name': 'Charlie', 'score': 80}], 'score') == [{'name': 'Bob', 'score': 70}, {'name': 'Charlie', 'score': 80}, {'name': 'Alice', 'score': 90}]
  assert sort_list_of_dicts_asc([{'name': 'Foo', 'height': 150}, {'name': 'Bar', 'height': 160}, {'name': 'Baz', 'height': 155}], 'height') == [{'name': 'Foo', 'height': 150}, {'name': 'Baz', 'height': 155}, {'name': 'Bar', 'height': 160}]
output: def sort_list_of_dicts_asc(lst, key):
      return sorted(lst, key=lambda x: x[key])