Add __slots__ to third-party packages using stubdefaulter (#14619)

stubs/pika/pika/adapters/blocking_connection.pyi

@@ -13,6 +13,7 @@ from ..spec import BasicProperties
 LOGGER: Logger
 
 class _CallbackResult:
+    __slots__ = ("_value_class", "_ready", "_values")
     def __init__(self, value_class=None) -> None: ...
     def reset(self) -> None: ...
     def __bool__(self) -> bool: ...
@@ -37,11 +38,13 @@ class _IoloopTimerContext:
     def is_ready(self): ...
 
 class _TimerEvt:
+    __slots__ = ("timer_id", "_callback")
     timer_id: Incomplete
     def __init__(self, callback) -> None: ...
     def dispatch(self) -> None: ...
 
 class _ConnectionBlockedUnblockedEvtBase:
+    __slots__ = ("_callback", "_method_frame")
     def __init__(self, callback, method_frame) -> None: ...
     def dispatch(self) -> None: ...
 
@@ -91,18 +94,21 @@ class BlockingConnection:
 class _ChannelPendingEvt: ...
 
 class _ConsumerDeliveryEvt(_ChannelPendingEvt):
+    __slots__ = ("method", "properties", "body")
     method: Incomplete
     properties: Incomplete
     body: Incomplete
     def __init__(self, method, properties, body) -> None: ...
 
 class _ConsumerCancellationEvt(_ChannelPendingEvt):
+    __slots__ = ("method_frame",)
     method_frame: Incomplete
     def __init__(self, method_frame) -> None: ...
     @property
     def method(self): ...
 
 class _ReturnedMessageEvt(_ChannelPendingEvt):
+    __slots__ = ("callback", "channel", "method", "properties", "body")
     callback: Incomplete
     channel: Incomplete
     method: Incomplete
@@ -112,12 +118,14 @@ class _ReturnedMessageEvt(_ChannelPendingEvt):
     def dispatch(self) -> None: ...
 
 class ReturnedMessage:
+    __slots__ = ("method", "properties", "body")
     method: Incomplete
     properties: Incomplete
     body: Incomplete
     def __init__(self, method, properties, body) -> None: ...
 
 class _ConsumerInfo:
+    __slots__ = ("consumer_tag", "auto_ack", "on_message_callback", "alternate_event_sink", "state")
     SETTING_UP: int
     ACTIVE: int
     TEARING_DOWN: int
@@ -138,6 +146,7 @@ class _ConsumerInfo:
     def cancelled_by_broker(self): ...
 
 class _QueueConsumerGeneratorInfo:
+    __slots__ = ("params", "consumer_tag", "pending_events")
     params: Incomplete
     consumer_tag: Incomplete
     pending_events: Incomplete

stubs/pika/pika/adapters/gevent_connection.pyi

@@ -49,6 +49,7 @@ class _GeventIOLoopIOHandle(AbstractIOReference):
     def cancel(self): ...
 
 class _GeventAddressResolver:
+    __slots__ = ("_loop", "_on_done", "_greenlet", "_ga_host", "_ga_port", "_ga_family", "_ga_socktype", "_ga_proto", "_ga_flags")
     def __init__(self, native_loop, host, port, family, socktype, proto, flags, on_done) -> None: ...
     def start(self) -> None: ...
     def cancel(self): ...

stubs/pika/pika/adapters/select_connection.pyi

@@ -23,6 +23,7 @@ class SelectConnection(BaseConnection):
     def create_connection(cls, connection_configs, on_done, custom_ioloop=None, workflow=None): ...
 
 class _Timeout:
+    __slots__ = ("deadline", "callback")
     deadline: Incomplete
     callback: Incomplete
     def __init__(self, deadline, callback) -> None: ...

stubs/pika/pika/adapters/utils/selector_ioloop_adapter.pyi

@@ -55,6 +55,7 @@ class SelectorIOServicesAdapter(
     def remove_writer(self, fd): ...
 
 class _FileDescriptorCallbacks:
+    __slots__ = ("reader", "writer")
     reader: Incomplete
     writer: Incomplete
     def __init__(self, reader=None, writer=None) -> None: ...

stubs/pika/pika/connection.pyi

@@ -17,6 +17,24 @@ PRODUCT: str
 LOGGER: Logger
 
 class Parameters:
+    __slots__ = (
+        "_blocked_connection_timeout",
+        "_channel_max",
+        "_client_properties",
+        "_connection_attempts",
+        "_credentials",
+        "_frame_max",
+        "_heartbeat",
+        "_host",
+        "_locale",
+        "_port",
+        "_retry_delay",
+        "_socket_timeout",
+        "_stack_timeout",
+        "_ssl_options",
+        "_virtual_host",
+        "_tcp_options",
+    )
     DEFAULT_USERNAME: str
     DEFAULT_PASSWORD: str
     DEFAULT_BLOCKED_CONNECTION_TIMEOUT: None
@@ -106,6 +124,7 @@ class Parameters:
     def tcp_options(self, value: dict[Incomplete, Incomplete] | None) -> None: ...
 
 class ConnectionParameters(Parameters):
+    __slots__ = ()
     def __init__(
         self,
         host: str = ...,
@@ -127,9 +146,11 @@ class ConnectionParameters(Parameters):
     ) -> None: ...
 
 class URLParameters(Parameters):
+    __slots__ = ("_all_url_query_values",)
     def __init__(self, url: str) -> None: ...
 
 class SSLOptions:
+    __slots__ = ("context", "server_hostname")
     context: ssl.SSLContext
     server_hostname: str | None
     def __init__(self, context: ssl.SSLContext, server_hostname: str | None = None) -> None: ...