Using 'where' inside 'with'

export const user = pgTable('user', {
  id: serial('id').primaryKey(),
  username: text('username').notNull(),
  email: text('email').notNull(),
  password: text('password').notNull(),
  bio: text('bio').default(null),
  image: text('image').default(null),
});

export const userRelations = relations(user, ({ many }) => ({
  article: many(article),
}));

export const article = pgTable('article', {
  id: serial('id').primaryKey(),
  slug: text('slug').notNull(),
  title: text('title').notNull(),
  description: text('description').default(null),
  body: text('body').default(null),
  createdAt: timestamp('createdAt').defaultNow(),
  updatedAt: timestamp('updatedAt'),
  tagList: text('tagList').notNull().array(),
  favoritesCount: integer('favoritesCount').default(0),
  authorId: integer('authorId').references(() => user.id),
});

export const articleRelations = relations(article, ({ one }) => ({
  authorId: one(user, {
    fields: [article.authorId],
    references: [user.id],
  }),
}));

const articlesQuery = await this.db.query.article.findMany({
      with: {
        authorId: {
          where: (authorId) => eq(authorId.username, queryParam.author),
        },
      },

error TS2322: Type '{ where: (authorId: any) => SQL<unknown>; }' is not assignable to type 'true | { columns?: { id?: boolean; username?: boolean; email?: boolean; password?: boolean; bio?: boolean; image?: boolean; }; with?: { article?: true | DBQueryConfig<"many", false, ExtractTablesWithRelations<typeof import("D:/Site/mediumclone_nestjs/src/schema")>, { ...; }>; }; extras?: Record<...> | ((fields: { .....'.

where

with