Deduplication of inline fragments of interface implementations

[filiplikavcan]

Is it possible to configure typescript-operations plugin somehow so it deduplicates inline fragments of interface implementations? See the example bellow where type of part is the same for Car and Train and could be extracted to a fragment type definition. dedupeFragments config option has no effect on this.

PS: Schema is just an example. Nobody wants a vehicle with either engine or window and nothing else. ;)

codegen.yaml:

generates:
  ./types.ts:
    plugins:
       - typescript-operations

schema and query:

schema {
  query: Query
}

type Query {
  vehicle: Vehicle!
}

interface Part {
  id: Int!
}

type Engine implements Part {
  id: Int!
  fuel: String!
}

type Window implements Part {
  id: Int!
  size: String!
}

interface Vehicle {
  id: Int!
  part: Part!
}

type Car implements Vehicle {
  id: Int!
  part: Part!
}

type Train implements Vehicle {
  id: Int!
  part: Part!
}

# query
query {
  vehicle {
      part {
          id
          ...on Engine {
              fuel
          }
          ...on Window {
              size
          }
      }
      ...on Car {
          id
      }
      ...on Train {
          id
      }
  }
}

types.ts:

export type Unnamed_1_QueryVariables = Exact<{ [key: string]: never }>;

export type Unnamed_1_Query = {
    __typename?: "Query";
    vehicle:
        | {
              __typename?: "Car";
              id: number;
              part:
                  | { __typename?: "Engine"; fuel: string; id: number }
                  | { __typename?: "Window"; size: string; id: number };
          }
        | {
              __typename?: "Train";
              id: number;
              part:
                  | { __typename?: "Engine"; fuel: string; id: number }
                  | { __typename?: "Window"; size: string; id: number };
          };
};

[filiplikavcan]

mergeFragmentTypes: true helps to reduce the code size:

export type Unnamed_1_Query = (
    {
        vehicle: (
            {
                id: number, part: (
                    { fuel: string, id: number }
                    & { __typename?: 'Engine' }
                    ) | (
                    { size: string, id: number }
                    & { __typename?: 'Window' }
                    )
            }
            & { __typename?: 'Car' | 'Train' }
            )
    }
    & { __typename?: 'Query' }
    );