function isEqualTypeimport { isEqualType } from "https://dotland.deno.dev/x/graphql_deno@v15.0.0/lib/utilities/index.d.ts"; isEqualType(typeA: GraphQLType, typeB: GraphQLType): booleanProvided two types, return true if the types are equal (invariant). Provided two types, return true if the types are equal (invariant). ParameterstypeA: GraphQLTypetypeB: GraphQLTypeReturnsboolean