rewrite model to latest best practice

Signed-off-by: Grant Ramsay <[email protected]>

Author: seapagan

models.py

@@ -1,13 +1,18 @@
 """Define Models used in this example."""
 from db import Base
-from sqlalchemy import Column, Integer, String
+from sqlalchemy import String
+from sqlalchemy.orm import Mapped, mapped_column
 
 
 class User(Base):
     """Create a test table."""
 
     __tablename__ = "users"
 
-    id = Column(Integer, primary_key=True, index=True)
-    name = Column(String)
-    email = Column(String, unique=True, index=True)
+    id: Mapped[int] = mapped_column(primary_key=True)
+    name: Mapped[str] = mapped_column(String(255))
+    email: Mapped[str] = mapped_column(String(120), unique=True, index=True)
+
+    def __repr__(self) -> str:
+        """Define the model representation."""
+        return f'User({self.id}, "{self.name}")'