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01Ask for work you can check 02Read the whole diff 03Keep secrets out of the code 04Treat every input as hostile 05Check who is asking 06Check that it exists 07Make tests able to fail 08Plan for when it breaks

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06Check that it exists

Fetching exchange rates

Code Python 9 lines

The askYou asked for "a function that fetches today's exchange rates and stamps the time." Tick the lines you would not accept.

This bench is in the Hall Pass ($1.95/month or $19.50/year) or Room 06 on its own for $1.00. Free during preview. Prices

Tick every line you would not accept. Tap or click the line; you can untick it again.

Tick the lines you would send back.