public String getRegion() {
        return this.region;
    }
The AWS Region that the API Gateway proxy endpoint was created in. This parameter is required for SPEKE
encryption and is not valid for static key encryption.

@return The AWS Region that the API Gateway proxy endpoint was created in. This parameter is required for SPEKE
        encryption and is not valid for static key encryption.
aws-java-sdk-mediaconnect/src/main/java/com/amazonaws/services/mediaconnect/model/UpdateEncryption.java