Provided previous "queryFacts", a GraphQL schema, and a query document string, return a set of facts about that query useful for GraphiQL features.
If the query cannot be parsed, returns undefined.
Optionalschema: GraphQLSchema | null
{GraphQLSchema} (optional)
OptionaldocumentString: string | null
{string} the document you want to parse for operations (optional)
Optionaloptions: GraphQLLanguageServiceOptions
Utilities useful for language services across runtimes