@CustomType.Setter
        public Builder valueFrom(@Nullable EnvVarSourcePatch valueFrom) {

            this.valueFrom = valueFrom;
            return this;
        }
@return Source for the environment variable&#39;s value. Cannot be used if value is not empty.
sdk/java/src/main/java/com/pulumi/kubernetes/core/v1/outputs/EnvVarPatch.java