# pylint: disable=missing-class-docstring,useless-import-alias
if TYPE_CHECKING:
- import psycopg2.sql
- import psycopg2.extensions
- import psycopg2.extras
import os
StrPath = Union[str, 'os.PathLike[str]']
SysEnv = Mapping[str, str]
-# psycopg2-related types
-
-Query = Union[str, bytes, 'psycopg2.sql.Composable']
+# psycopg-related types
T_ResultKey = TypeVar('T_ResultKey', int, str)
DictCursorResults = Sequence[DictCursorResult]
-T_cursor = TypeVar('T_cursor', bound='psycopg2.extensions.cursor')
-
# The following typing features require typing_extensions to work
# on all supported Python versions.
# Only require this for type checking but not for normal operations.