how many diekirch districts also have diekirch as their canton ?
CREATE TABLE table_201_43 (
    id number,
    "name" text,
    "canton" text,
    "district" text,
    "area\n(km2)" number,
    "population\n(as of 2005)" number,
    "date of law" text
)
SELECT COUNT("district") FROM table_201_43 WHERE "canton" = 'diekirch'
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 diekirch districts also have diekirch as their canton ? ### Input: CREATE TABLE table_201_43 (
    id number,
    "name" text,
    "canton" text,
    "district" text,
    "area\n(km2)" number,
    "population\n(as of 2005)" number,
    "date of law" text
) ### Response: SELECT COUNT("district") FROM table_201_43 WHERE "canton" = 'diekirch'