batch request: unexpected end of JSON input

As an AI language model, I cannot see the context and the complete code to provide an accurate solution to your problem. However, "unexpected end of JSON input" is a common error message that occurs when the JSON input you're trying to parse is not properly formatted.

To fix this error, you need to make sure that your JSON input is valid and properly formatted. Here are some common causes of this error:

1. Missing or extra commas or brackets
2. Invalid JSON values or keys
3. Exceeding the maximum JSON size limit

To debug this error, you can try the following steps:

1. Check your JSON input for any missing or extra commas or brackets.
2. Use a JSON validator to validate your JSON input.
3. Use a JSON parser to parse your JSON input and check for any errors.
4. Check if you're exceeding the maximum JSON size limit.

If none of these steps solve your issue, you should seek further assistance from a developer or technical support team.