error[E0107]: missing generics for struct `chrono::DateTime`

[bbigras]

query

mutation Publish($id: ID!, $input: [PublicationInput!]!) {
  publishablePublish(id: $id, input: $input) {
    userErrors {
      field
      message
    }
  }
}

4  | #[derive(GraphQLQuery)]
   |          ^^^^^^^^^^^^ expected 1 generic argument
   |
note: struct defined here, with 1 generic parameter: `Tz`
  --> /home/bbigras/.cargo/registry/src/github.com-1ecc6299db9ec823/chrono-0.4.23/src/datetime/mod.rs:89:12
   |
89 | pub struct DateTime<Tz: TimeZone> {
   |            ^^^^^^^^ --
   = note: this error originates in the derive macro `GraphQLQuery` (in Nightly builds, run with -Z macro-backtrace for more info)
help: add missing generic argument
   |
4  | #[derive(GraphQLQuery<Tz>)]

I tried using #[derive(GraphQLQuery<Utc>)] but I get:

4 | #[derive(GraphQLQuery<Utc>)]
  |                      ^ expected one of `(`, `,`, `::`, or `=`

[tomhoule]

Have you tried defining type DateTime = chrono::DateTime<Utc> in the parent scope?

[bbigras]

It works. Thank you very much!