Use docstring of handler in the OAS description

aiohttp_pydantic/oas/view.py

@@ -1,3 +1,4 @@
+from inspect import getdoc
 import typing
 from typing import List, Type
 
@@ -67,6 +68,9 @@ def _add_http_method_to_oas(
     oas_operation: OperationObject = getattr(oas_path, http_method)
     handler = getattr(view, http_method)
     path_args, body_args, qs_args, header_args = _parse_func_signature(handler)
+    description = getdoc(handler)
+    if description:
+        oas_operation.description = description
 
     if body_args:
         oas_operation.request_body.content = {

aiohttp_pydantic/view.py

@@ -9,8 +9,14 @@ from aiohttp.web_exceptions import HTTPMethodNotAllowed
 from aiohttp.web_response import StreamResponse
 from pydantic import ValidationError
 
-from .injectors import (AbstractInjector, BodyGetter, HeadersGetter,
-                        MatchInfoGetter, QueryGetter, _parse_func_signature)
+from .injectors import (
+    AbstractInjector,
+    BodyGetter,
+    HeadersGetter,
+    MatchInfoGetter,
+    QueryGetter,
+    _parse_func_signature,
+)
 
 
 class PydanticView(AbstractView):