fix: handle python type for Postgres TSVECTOR

Author: danplischke

src/sqlacodegen/generators.py

@@ -38,7 +38,7 @@
     TypeDecorator,
     UniqueConstraint,
 )
-from sqlalchemy.dialects.postgresql import DOMAIN, JSON, JSONB
+from sqlalchemy.dialects.postgresql import DOMAIN, JSON, JSONB, TSVECTOR
 from sqlalchemy.engine import Connection, Engine
 from sqlalchemy.exc import CompileError
 from sqlalchemy.sql.elements import TextClause
@@ -1242,6 +1242,8 @@ def get_type_qualifiers() -> tuple[str, TypeEngine[Any], str]:
         def render_python_type(column_type: TypeEngine[Any]) -> str:
             if isinstance(column_type, DOMAIN):
                 python_type = column_type.data_type.python_type
+            elif isinstance(column_type, TSVECTOR):
+                python_type = str
             else:
                 python_type = column_type.python_type