CREATE TABLE table_20590 ("Season #" FLOAT, "Series #" FLOAT, "Title" CLOB, "Director ( s ) " CLOB, "Writer ( s ) " CLOB, "Original airdate" CLOB)

What is the total number of episodes where alexa wyatt is the writer?
SELECT COUNT("Series #") FROM table_20590 WHERE "Writer(s)" = 'Alexa Wyatt'
SELECT COUNT("Series #") FROM "table_20590" WHERE "Writer(s)" = 'Alexa Wyatt'