Migrate Todo CRUD to SQLAlchemy ORM

models.py

@@ -0,0 +1,21 @@
+from database import Base
+from sqlalchemy import Boolean, String
+from sqlalchemy.dialects.mysql import BIGINT
+from sqlalchemy.orm import Mapped, mapped_column
+
+class Todo(Base):
+    __tablename__ = "todos"
+    id: Mapped[int] = mapped_column(
+            BIGINT(unsigned=True),
+            primary_key = True,
+            autoincrement = True,
+        )
+    task: Mapped[str] = mapped_column(
+            String(200),
+            nullable = False,
+        )
+    completion: Mapped[bool] = mapped_column(
+            Boolean,
+            nullable = False,
+            default = False,
+        )