How many episodes were written by Warren Leight?
CREATE TABLE table_29154676_1 (season_no VARCHAR, written_by VARCHAR)
SELECT COUNT(season_no) FROM table_29154676_1 WHERE written_by = "Warren Leight"
### Context: CREATE TABLE table_29154676_1 (season_no VARCHAR, written_by VARCHAR) ### Question: How many episodes were written by Warren Leight? ### Answer: SELECT COUNT(season_no) FROM table_29154676_1 WHERE written_by = "Warren Leight"