Optionalconfigs: anyProtectedconfigsReadonlydefaultProtectedmodelProtectedparentProtectedservicesProtectedgetProtectedgetProtectedgetProtectedgetProtectedgetOptionallabel: stringProtectedgetOptionalnumGroups: numberProtectedisProtectedset
graphs used in combo charts share a model with global options but can receive their own local options. this function retrieves the global options and merges it with any options passed into this component's config.options object.