this.client.migrate is not a function

import { defineConfig } from 'drizzle-kit';
if (!process.env.DATABASE_URL) throw new Error('DATABASE_URL is not set');

export default defineConfig({
  schema: './src/lib/server/db/schema.ts',

  dbCredentials: {
    url: process.env.DATABASE_URL
  },

  verbose: true,
  strict: true,
  dialect: 'sqlite'
});

import { sqliteTable, text } from "drizzle-orm/sqlite-core";

export const slackSessionsTable = sqliteTable("slack_sessions", {
    sessionId: text().primaryKey(),
    userId: text().notNull(),
    name: text().notNull(),
    firstName: text().notNull(),
    pfp: text().notNull(),
    email: text().notNull(),
});

export type SlackSession = typeof slackSessionsTable.$inferSelect;

[⣷] applying migrations...TypeError: this.client.migrate is not a function
    at LibSQLSession.migrate (/home/skyfall/Projects/high-seas-sveltekit/node_modules/src/libsql/session.ts:90:42)
    at migrate (/home/skyfall/Projects/high-seas-sveltekit/node_modules/src/libsql/migrator.ts:46:19)