module Graphql = ApolloClient__Graphql;

module type Fragment = {
  // This type is determined by the `-template-tag-return-type` ppx flag
  let query: Graphql.documentNode;

  module Raw: {type t;};
  type t;

  let parse: Raw.t => t;
  let serialize: t => Raw.t;
};

module type Operation = {
  // This type is determined by the `-template-tag-return-type` ppx flag
  let query: Graphql.documentNode;

  module Raw: {
    type t;
    type t_variables;
  };
  type t;
  type t_variables;

  let parse: Raw.t => t;
  let serialize: t => Raw.t;
  let serializeVariables: t_variables => Raw.t_variables;
};

module type OperationNoRequiredVars = {
  include Operation;
  let makeDefaultVariables: unit => t_variables;
};

type parseError = {
  value: Js.Json.t,
  error: Js.Exn.t,
};

type parseResult('data) = result('data, parseError);

type safeParse('data, 'jsData) = 'jsData => parseResult('data);