SourceSnapshotName: [required] The name of an existing snapshot from which to make a copy.
TargetSnapshotName: [required] A name for the snapshot copy. MemoryDB does not permit overwriting a snapshot, therefore this name must be unique within its context - MemoryDB or an Amazon S3 bucket if exporting.
TargetBucket: The Amazon S3 bucket to which the snapshot is exported. This parameter is used only when exporting a snapshot for external access. When using this parameter to export a snapshot, be sure MemoryDB has the needed permissions to this S3 bucket. For more information, see Step 2: Grant MemoryDB Access to Your Amazon S3 Bucket.
KmsKeyId: The ID of the KMS key used to encrypt the target snapshot.
Tags: A list of tags to be added to this resource. A tag is a key-value pair. A tag key must be accompanied by a tag value, although null is accepted.