mutation DeleteSavedPost($input: DeleteSavedPostInput!) {
  deleteSavedPost(input: $input) {
    clientMutationId
    deletedPostId
    errors
  }
}

{
  "input": {
    "postId": "id"
  }
}

{
  "data": {
    "deleteSavedPost": {
      "clientMutationId": "string",
      "deletedPostId": "id",
      "errors": [
        "string"
      ]
    }
  }
}