public String getId() {
        return this.id;
    }
A descriptive or arbitrary ID for the core. This value must be unique within the core definition version. Max
length is 128 characters with pattern ''[a-zA-Z0-9:_-]+''.

@return A descriptive or arbitrary ID for the core. This value must be unique within the core definition version.
        Max length is 128 characters with pattern ''[a-zA-Z0-9:_-]+''.
aws-java-sdk-greengrass/src/main/java/com/amazonaws/services/greengrass/model/Core.java