input: from typing import Dict
  
  def create_dictionary(key: str, value: str) -> Dict[str, str]:
      """ Creates a dictionary with a single key-value pair.
      >>> create_dictionary("FirstName", "John")
      {'FirstName': 'John'}
      >>> create_dictionary("LastName", "Doe")
      {'LastName': 'Doe'}
      """
output:     return {key: value}