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_8 (production_code VARCHAR, written_by VARCHAR)
### Question:
What are all the production codes of episodes written by Michael G. Moye?
### Answer:
SELECT production_code FROM table_2226817_8 WHERE written_by = "Michael G. Moye"