Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE documents (access_count INTEGER, document_type_code VARCHAR)
### Question:
Find the total access count of all documents in the most popular document type.
### Answer:
SELECT SUM(access_count) FROM documents GROUP BY document_type_code ORDER BY COUNT(*) DESC LIMIT 1