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If a key does not exist, it is initialized as 0 before performing the operation. An error is returned if the key contains a value of the wrong type or contains a string that can not be represented as integer.

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Arguments

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key
str
required
The key to decrement.

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Response

The value at the key after the decrementing.
redis.set("key", 6)

assert redis.decr("key") == 5