import { type GraphQLScalarSerializer } from "https://deno.land/x/graphql_tools@0.0.4-deprecated/deps.ts";
definition: (value: any) => Maybe<TExternal>
x/graphql_tools/deps.ts>GraphQLScalarSerializer
import { type GraphQLScalarSerializer } from "https://deno.land/x/graphql_tools@0.0.4-deprecated/deps.ts";