Accumulator (fields_derivers.Fields_derivers_graphql.Graphql

module T : sig ... end

type ('input_type, 'a, 'c, 'nullable) t =
  < graphql_fields_accumulator : 'c T.t list Core_kernel.ref.. > as 'a
  constraint
    ( 'input_type, 'a, 'c, 'nullable ) t =
    ( 'input_type, 'a, 'c, 'nullable ) Input.t

thunks generating the schema in reverse