Dest:                 stmt.Dest,
		ReflectValue:         stmt.ReflectValue,
		Clauses:              map[string]clause.Clause{},
		Distinct:             stmt.Distinct,
		Selects:              stmt.Selects,
		Omits:                stmt.Omits,
		ColumnMapping:        stmt.ColumnMapping,
		Preloads:             map[string][]interface{}{},
		ConnPool:             stmt.ConnPool,
		Schema:               stmt.Schema,

			}

			if db, ok := jt.Subquery.(interface{ getInstance() *DB }); ok {
				stmt := db.getInstance().Statement
				if len(j.Selects) == 0 {
					j.Selects = stmt.Selects
				}
				if len(j.Omits) == 0 {
					j.Omits = stmt.Omits
				}
			}

			expr := clause.NamedExpr{SQL: fmt.Sprintf("%s JOIN (?) AS ?", joinType), Vars: []interface{}{jt.Subquery, clause.Table{Name: j.Alias}}}

			if j.On != nil {

		t.Fatalf("failed to find user, got error: %v", err)
	} else if u.Name != user.Name || u.Age != 0 {
		t.Errorf("found invalid user, got %v, expect %v", u, user)
	}

	if u, err := gorm.G[User](DB).Omit("name").Where("name = ?", user.Name).First(ctx); err != nil {
		t.Fatalf("failed to find user, got error: %v", err)
	} else if u.Name != "" || u.Age != user.Age {
		t.Errorf("found invalid user, got %v, expect %v", u, user)
	}

):
    return {"message": "Hello World"}
```

...all these parameters are required because the default value is `...` (Ellipsis).

But now it's possible and supported to just omit the default value, as would be done with Pydantic fields, and the parameters would still be required.

✨ For example, this is now supported:

```Python
from fastapi import Cookie, FastAPI, Header, Path, Query