Add stub file for static type checkers

MANIFEST.in

@@ -5,6 +5,12 @@ include requirements.txt
 include buildutils/*
 include _custom_build/*
 include capnp/lib/capnp_api.h
+include capnp/__init__.pyi
+include capnp/types.pyi
+include capnp/version.pyi
+include capnp/lib/__init__.pyi
+include capnp/lib/capnp.pyi
+include capnp/py.typed
 include Pipfile
 include tox.ini
 recursive-include examples *.capnp

capnp/__init__.pyi

@@ -0,0 +1,42 @@
+from capnp import lib as lib
+from capnp import types as types
+from capnp import version as version
+from capnp.lib.capnp import KjException as KjException
+from capnp.lib.capnp import SchemaLoader as SchemaLoader
+from capnp.lib.capnp import SchemaParser as SchemaParser
+from capnp.lib.capnp import TwoPartyClient as TwoPartyClient
+from capnp.lib.capnp import TwoPartyServer as TwoPartyServer
+from capnp.lib.capnp import _AsyncIoStream
+from capnp.lib.capnp import _CapabilityClient as _CapabilityClient
+from capnp.lib.capnp import _DynamicCapabilityClient as _DynamicCapabilityClient
+from capnp.lib.capnp import _DynamicListBuilder as _DynamicListBuilder
+from capnp.lib.capnp import _DynamicListReader as _DynamicListReader
+from capnp.lib.capnp import _DynamicOrphan as _DynamicOrphan
+from capnp.lib.capnp import _DynamicResizableListBuilder as _DynamicResizableListBuilder
+from capnp.lib.capnp import _DynamicStructBuilder as _DynamicStructBuilder
+from capnp.lib.capnp import _DynamicStructReader as _DynamicStructReader
+from capnp.lib.capnp import _EventLoop as _EventLoop
+from capnp.lib.capnp import _init_capnp_api as _init_capnp_api
+from capnp.lib.capnp import _InterfaceModule as _InterfaceModule
+from capnp.lib.capnp import _ListSchema as _ListSchema
+from capnp.lib.capnp import _MallocMessageBuilder as _MallocMessageBuilder
+from capnp.lib.capnp import _PackedFdMessageReader as _PackedFdMessageReader
+from capnp.lib.capnp import _PyCustomMessageBuilder as _PyCustomMessageBuilder
+from capnp.lib.capnp import _StreamFdMessageReader as _StreamFdMessageReader
+from capnp.lib.capnp import _StructModule as _StructModule
+from capnp.lib.capnp import _write_message_to_fd as _write_message_to_fd
+from capnp.lib.capnp import _write_packed_message_to_fd as _write_packed_message_to_fd
+from capnp.lib.capnp import add_import_hook as add_import_hook
+from capnp.lib.capnp import cleanup_global_schema_parser as cleanup_global_schema_parser
+from capnp.lib.capnp import deregister_all_types as deregister_all_types
+from capnp.lib.capnp import fill_context as fill_context
+from capnp.lib.capnp import kj_loop as kj_loop
+from capnp.lib.capnp import load as load
+from capnp.lib.capnp import read_multiple_bytes_packed as read_multiple_bytes_packed
+from capnp.lib.capnp import register_type as register_type
+from capnp.lib.capnp import remove_import_hook as remove_import_hook
+from capnp.lib.capnp import run as run
+from capnp.lib.capnp import void_task_done_callback as void_task_done_callback
+
+AsyncIoStream = _AsyncIoStream
+__version__: str

capnp/lib/__init__.pyi

@@ -0,0 +1 @@
+from capnp.lib import capnp as capnp