how many districts are there in this city ?
CREATE TABLE table_204_739 (
    id number,
    "districts" text,
    "ubigeo" number,
    "area\n(km2)" number,
    "population" number,
    "population density\n(/km2)" number,
    "created" text,
    "postal\ncode" number
)
SELECT COUNT("districts") FROM table_204_739
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: how many districts are there in this city ? ### Input: CREATE TABLE table_204_739 (
    id number,
    "districts" text,
    "ubigeo" number,
    "area\n(km2)" number,
    "population" number,
    "population density\n(/km2)" number,
    "created" text,
    "postal\ncode" number
) ### Response: SELECT COUNT("districts") FROM table_204_739