Can you give comments for the following code : 

def generate_prompt(data_point):
return f"""Below is a text with a pair of question and answer relating to the text given.
### Input:
{data_point["Question"]}
### Response:
{data_point["Answer"]}"""

def tokenize(prompt, add_eos_token=True):
    result= tokenizer(
        prompt,
        truncation=True,
        padding=False,
        return_tensors=None,
    )
if (
        result["input_ids"][-1]!= tokenizer.eos_token_id
#         and len(result["input_ids"]) < CUTOFF_LENand add_eos_token
    ):
        result["input_ids"].append(tokenizer.eos_token_id)
        result["attention_mask"].append(1)

    result["labels"]= result["input_ids"].copy()

return result

def generate_and_tokenize_prompt(data_point):
    full_prompt= generate_prompt(data_point)
    tokenized_full_prompt= tokenize(full_prompt)
return tokenized_full_prompt