Creates a new key value pair or replaces the value of an existing key.
See https://www.paws-r-sdk.com/docs/cloudfrontkeyvaluestore_put_key/ for full documentation.
cloudfrontkeyvaluestore_put_key(Key, Value, KvsARN, IfMatch)
[required] The key to put.
[required] The value to put.
[required] The Amazon Resource Name (ARN) of the Key Value Store.
[required] The current version (ETag) of the Key Value Store that you are putting keys into, which you can get using DescribeKeyValueStore.