input: from typing import List
  
  def replace_word_in_sentence(sentence: str, old_word: str, new_word: str) -> str:
      """ Replace a given word in a sentence with another word.
      >>> replace_word_in_sentence("I love walking on the beach", "walking", "swimming")
      "The new sentence is: 'I love swimming on the beach'"
      >>> replace_word_in_sentence("Python is great", "great", "awesome")
      "The new sentence is: 'Python is awesome'"
      """
      new_sentence = sentence.replace(old_word, new_word)
      return "The new sentence is: '{}'".format(new_sentence)
output:     new_sentence = sentence.replace(old_word, new_word)
      return "The new sentence is: '{}'".format(new_sentence)