@CustomType.Setter
        public Builder source(String source) {
            if (source == null) {
              throw new MissingRequiredPropertyException("DeviceAllocationConfiguration", "source");
            }
            this.source = source;
            return this;
        }
@return Source records whether the configuration comes from a class and thus is not something that a normal user would have been able to set or from a claim.
sdk/java/src/main/java/com/pulumi/kubernetes/resource/v1beta1/outputs/DeviceAllocationConfiguration.java