diff --git a/wally/sensors_rpc_plugin.pyi b/wally/sensors_rpc_plugin.pyi
index c4b387b..21fe1d5 100644
--- a/wally/sensors_rpc_plugin.pyi
+++ b/wally/sensors_rpc_plugin.pyi
@@ -1,24 +1,22 @@
-import os
 from typing import NamedTuple, TypeVar, Callable, Any, Optional, List, Iterable, Dict, Tuple
 
-SensorInfo = NamedTuple("SensorInfo", [('value', int), ('is_accumulated', bool)])
 Pid = TypeVar('Pid', str)
 AnyFunc = TypeVar('AnyFunc', Callable[..., Any])
 PrefixList = Optional[List[str]]
-SensorDict = Dict[str, SensorInfo]
+SensorDict = Dict[str, int]
 
 def provides(name: str) -> Callable[[AnyFunc], AnyFunc]: ...
-def is_dev_accepted(name, disallowed_prefixes: PrefixList, allowed_prefixes: PrefixList) -> bool: ...
+def is_dev_accepted(name: str, disallowed_prefixes: PrefixList, allowed_prefixes: PrefixList) -> bool: ...
 def get_pid_name(pid: Pid) -> str: ...
-def delta(func, only_upd: bool = True) -> Iterable[Optional[str], Optional[Dict[str, str]]]: ...
-def get_latency(stat1: SensorDict, stat2: SensorDict) -> SensorDict: ...
 def pid_stat(pid: Pid) -> float: ...
 def get_mem_stats(pid : Pid) -> Tuple[int, int]: ...
-def get_ram_size() -> str: ...
+def get_ram_size() -> int: ...
 
-def io_stat(disallowed_prefixes: PrefixList, allowed_prefixes: PrefixList) -> SensorDict: ...
-def net_stat(disallowed_prefixes: PrefixList, allowed_prefixes: PrefixList) -> SensorDict: ...
-def pscpu_stat(disallowed_prefixes: PrefixList, allowed_prefixes: PrefixList) -> SensorDict: ...
-def psram_stat(disallowed_prefixes: PrefixList, allowed_prefixes: PrefixList) -> SensorDict: ...
-def syscpu_stat(disallowed_prefixes: PrefixList, allowed_prefixes: PrefixList) -> SensorDict: ...
-def sysram_stat(disallowed_prefixes: PrefixList, allowed_prefixes: PrefixList) -> SensorDict: ...
+def io_stat(disallowed_prefixes: PrefixList, allowed_prefixes: PrefixList) -> int: ...
+def net_stat(disallowed_prefixes: PrefixList, allowed_prefixes: PrefixList) -> int: ...
+def pscpu_stat(disallowed_prefixes: PrefixList, allowed_prefixes: PrefixList) -> int: ...
+def psram_stat(disallowed_prefixes: PrefixList, allowed_prefixes: PrefixList) -> int: ...
+def syscpu_stat(disallowed_prefixes: PrefixList, allowed_prefixes: PrefixList) -> int: ...
+def sysram_stat(disallowed_prefixes: PrefixList, allowed_prefixes: PrefixList) -> int: ...
+
+