from tortoise import BaseDBAsyncClient


async def upgrade(db: BaseDBAsyncClient) -> str:
    return """
        ALTER TABLE "notifications" ALTER COLUMN "message" TYPE TEXT USING "message"::TEXT;"""


async def downgrade(db: BaseDBAsyncClient) -> str:
    return """
        ALTER TABLE "notifications" ALTER COLUMN "message" TYPE VARCHAR(255) USING "message"::VARCHAR(255);"""