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 table_2226817_9 (directed_by VARCHAR, production_code VARCHAR)
### Question:
How many episodes have the production code 8.04
### Answer:
SELECT COUNT(directed_by) FROM table_2226817_9 WHERE production_code = "8.04"