is it somehow possible to add custom queries to the elastic query already when defining the GraphQL objects? I wan't to add a filter to my query to retrieve only Users from elastic which have the flag isCustomer set. I couldn't find any doc for this. There seems to be an "opts" fields, but not sure how to use it.

const CustomerES = composeWithElastic({
 graphqlTypeName: 'UserES',
 elasticIndex: 'users',
 elasticType: '_doc',
 elasticMapping: properties,
 elasticClient,
 pluralFields: ['orders'],
 opts: {
 query: {
 isCustomer: true,
 },
 },
});

sorry if this question is stupid, I'm just starting GraphQL and elastic ;)