import { OverlappingFieldsCanBeMergedRule } from "https://dotland.deno.dev/x/graphql_deno@v15.0.0/lib/validation/rules/OverlappingFieldsCanBeMergedRule.js";
Overlapping fields can be merged
A selection set is only valid if all fields (including spreading any fragments) either correspond to distinct response names or can be merged without ambiguity.