clean up and refactor

examples/person_cli.py

@@ -0,0 +1,30 @@
+import typer
+
+from examples.models import Person
+from pydantic_typer import expand_pydantic_args
+
+app = typer.Typer(
+    name="pydantic_typer",
+    help="a demo app",
+)
+
+
+@app.callback()
+def main() -> None:
+    return
+
+
+@app.command()
+@expand_pydantic_args(typer=True)
+def get_person(person: Person, thing: str, another: str = "this") -> Person:
+    """Get a person's information."""
+    from rich import print
+
+    print(thing)
+    print(another)
+
+    print(person)
+
+
+if __name__ == "__main__":
+    typer.run(get_person)