@CustomType.Setter
        public Builder configMapKeyRef(@Nullable ConfigMapKeySelectorPatch configMapKeyRef) {

            this.configMapKeyRef = configMapKeyRef;
            return this;
        }
@return Selects a key of a secret in the pod&#39;s namespace
sdk/java/src/main/java/com/pulumi/kubernetes/core/v1/outputs/EnvVarSourcePatch.java