Mulitple index for json field

model Chat {
  id          String         @id @default(auto()) @map("_id") @db.ObjectId
  messages    Json[]
  description String?
  creatorId   String         @db.ObjectId
  metadata    IChatMetadata?

  createdAt DateTime? @default(now())
  updatedAt DateTime? @updatedAt

  creator User @relation(fields: [creatorId], references: [id])

  @@index([creatorId])
  @@index([metadata(path: "published")], map: "ai_chats_metadata_published_idx")
  @@index([metadata(path: "isPublic")], map: "ai_chats_metadata_isPublic_idx")
  @@map("ai_chats")
}

type IChatMetadata {
  gitUrl    String?
  gitBranch String?
  customUrl String?
  published Boolean? @default(false)
  isPublic  Boolean? @default(true)
}

Error parsing attribute "@@index": Index already exists in the model.Prisma
Error parsing attribute "@@index": The given constraint name `ai_chats_metadata_idx` has to be unique in the following namespace: on model `AiChat` for indexes and unique constraints. Please provide a different name using the `map` argument.Prisma