Arguments
str
required
The key to decrement.
int
required
The amount to decrement by.
Response
The value at the key after the decrementing.
redis.set("key", 6)
assert redis.decrby("key", 4) == 2
String
DECRBY
Decrement the integer value of a key by a given number.
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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