diff --git a/src/alsaaudio-stubs/__init__.pyi b/src/alsaaudio-stubs/__init__.pyi
index 8246304..016619e 100644
--- a/src/alsaaudio-stubs/__init__.pyi
+++ b/src/alsaaudio-stubs/__init__.pyi
@@ -79,56 +79,56 @@ def mixers(cardindex: int = -1, device: str = 'default') -> list[str]: ...
 def asoundlib_version() -> str: ...
 
 class PCM:
-	def __init__(type: int = PCM_PLAYBACK, mode: int = PCM_NORMAL, rate: int = 44100, channels: int = 2,
+	def __init__(self, type: int = PCM_PLAYBACK, mode: int = PCM_NORMAL, rate: int = 44100, channels: int = 2,
 		format: int = PCM_FORMAT_S16_LE, periodsize: int = 32, periods: int = 4,
-		device: str = 'default', cardindex: int = -1) -> PCM: ...
-	def close() -> None: ...
-	def dumpinfo() -> None: ...
-	def info() -> dict: ...
-	def state() -> int: ...
-	def htimestamp() -> tuple[int, int, int]: ...
-	def set_tstamp_mode(mode: int = PCM_TSTAMP_ENABLE) -> None: ...
-	def get_tstamp_mode() -> int: ...
-	def set_tstamp_type(type: int = PCM_TSTAMP_TYPE_GETTIMEOFDAY) -> None: ...
-	def get_tstamp_type() -> int: ...
-	def getformats() -> dict: ...
-	def getratebounds() -> tuple[int, int]: ...
-	def getrates() -> int | tuple[int, int] | list[int]: ...
-	def getchannels() -> list[int]: ...
-	def setchannels(nchannels: int) -> None: ...
-	def pcmtype() -> int: ...
-	def pcmmode() -> int: ...
-	def cardname() -> str: ...
-	def setrate(rate: int) -> None: ...
-	def setformat(format: int) -> int: ...
-	def setperiodsize(period: int) -> int: ...
-	def read() -> tuple[int, bytes]: ...
-	def write(data: bytes) -> int: ...
-	def avail() -> int: ...
-	def pause(enable: bool = True) -> int: ...
-	def drop() -> int: ...
-	def drain() -> int: ...
-	def polldescriptors() -> list[tuple[int, int]]: ...
-	def polldescriptors_revents(descriptors: list[tuple[int, int]]) -> int: ...
+		device: str = 'default', cardindex: int = -1) -> None: ...
+	def close(self) -> None: ...
+	def dumpinfo(self) -> None: ...
+	def info(self) -> dict: ...
+	def state(self) -> int: ...
+	def htimestamp(self) -> tuple[int, int, int]: ...
+	def set_tstamp_mode(self, mode: int = PCM_TSTAMP_ENABLE) -> None: ...
+	def get_tstamp_mode(self) -> int: ...
+	def set_tstamp_type(self, type: int = PCM_TSTAMP_TYPE_GETTIMEOFDAY) -> None: ...
+	def get_tstamp_type(self) -> int: ...
+	def getformats(self) -> dict: ...
+	def getratebounds(self) -> tuple[int, int]: ...
+	def getrates(self) -> int | tuple[int, int] | list[int]: ...
+	def getchannels(self) -> list[int]: ...
+	def setchannels(self, nchannels: int) -> None: ...
+	def pcmtype(self) -> int: ...
+	def pcmmode(self) -> int: ...
+	def cardname(self) -> str: ...
+	def setrate(self, rate: int) -> None: ...
+	def setformat(self, format: int) -> int: ...
+	def setperiodsize(self, period: int) -> int: ...
+	def read(self) -> tuple[int, bytes]: ...
+	def write(self, data: bytes) -> int: ...
+	def avail(self) -> int: ...
+	def pause(self, enable: bool = True) -> int: ...
+	def drop(self) -> int: ...
+	def drain(self) -> int: ...
+	def polldescriptors(self) -> list[tuple[int, int]]: ...
+	def polldescriptors_revents(self, descriptors: list[tuple[int, int]]) -> int: ...
 
 class Mixer:
-	def __init__(control: str = 'Master', id: int = 0, cardindex: int = -1, device: str = 'default') -> Mixer: ...
-	def cardname() -> str: ...
-	def close() -> None: ...
-	def mixer() -> str: ...
-	def mixerid() -> int: ...
-	def switchcap() -> int: ...
-	def volumecap() -> int: ...
-	def getvolume(pcmtype: int = PCM_PLAYBACK, units: int = VOLUME_UNITS_PERCENTAGE) -> int: ...
-	def getrange(pcmtype: int = PCM_PLAYBACK, units: int = VOLUME_UNITS_RAW) -> tuple[int, int]: ...
-	def getenum() -> tuple[str, list[str]]: ...
-	def getmute() -> list[int]: ...
-	def getrec() -> list[int]: ...
-	def setvolume(volume: int, pcmtype: int = PCM_PLAYBACK, units: int = VOLUME_UNITS_PERCENTAGE, channel: (int | None) = None) -> None: ...
-	def setenum(index: int) -> None: ...
-	def setmute(mute: bool, channel: (int | None) = None) -> None: ...
-	def setrec(capture: int, channel: (int | None) = None) -> None: ...
-	def polldescriptors() -> list[tuple[int, int]]: ...
-	def handleevents() -> int: ...
+	def __init__(self, control: str = 'Master', id: int = 0, cardindex: int = -1, device: str = 'default') -> None: ...
+	def cardname(self) -> str: ...
+	def close(self) -> None: ...
+	def mixer(self) -> str: ...
+	def mixerid(self) -> int: ...
+	def switchcap(self) -> int: ...
+	def volumecap(self) -> int: ...
+	def getvolume(self, pcmtype: int = PCM_PLAYBACK, units: int = VOLUME_UNITS_PERCENTAGE) -> int: ...
+	def getrange(self, pcmtype: int = PCM_PLAYBACK, units: int = VOLUME_UNITS_RAW) -> tuple[int, int]: ...
+	def getenum(self) -> tuple[str, list[str]]: ...
+	def getmute(self) -> list[int]: ...
+	def getrec(self) -> list[int]: ...
+	def setvolume(self, volume: int, pcmtype: int = PCM_PLAYBACK, units: int = VOLUME_UNITS_PERCENTAGE, channel: (int | None) = None) -> None: ...
+	def setenum(self, index: int) -> None: ...
+	def setmute(self, mute: bool, channel: (int | None) = None) -> None: ...
+	def setrec(self, capture: int, channel: (int | None) = None) -> None: ...
+	def polldescriptors(self) -> list[tuple[int, int]]: ...
+	def handleevents(self) -> int: ...
 
 class ALSAAudioError(Exception): ...