public String group() {
        return this.group;
    }
@return group is the API group of the defined custom resource. The custom resources are served under `/apis/&lt;group&gt;/...`. Must match the name of the CustomResourceDefinition (in the form `&lt;names.plural&gt;.&lt;group&gt;`).
sdk/java/src/main/java/com/pulumi/kubernetes/apiextensions/v1/outputs/CustomResourceDefinitionSpec.java