Rewrite Bot classes. Add moooooore pydocs.

aiogram/bot/api.py

@@ -86,12 +86,7 @@ def _compose_data(params=None, files=None):
 
     if params:
         for key, value in params.items():
-            # TODO: Normalize data in other place.
-            if value.__class__ is dict:
-                value = json.dumps(value)
-            elif hasattr(value, 'to_json'):
-                value = json.dumps(value.to_json())
-            data.add_field(key, value)
+            data.add_field(key, str(value))
 
     if files:
         for key, f in files.items():

aiogram/types/__init__.py

@@ -47,7 +47,10 @@ from .video_note import VideoNote
 from .voice import Voice
 from .webhook_info import WebhookInfo
 
+from . import base
+
 __all__ = [
+    'base',
     'Animation',
     'Audio',
     'CallbackQuery',

aiogram/utils/payload.py

@@ -1,3 +1,5 @@
+from aiogram.utils import json
+
 DEFAULT_FILTER = ['self']
 
 
@@ -8,3 +10,11 @@ def generate_payload(exclude=None, **kwargs):
             key not in exclude + DEFAULT_FILTER
             and value
             and not key.startswith('_')}
+
+
+def prepare_arg(value):
+    if isinstance(value, (list, dict)):
+        return json.dumps(value)
+    elif hasattr(value, 'to_json'):
+        return json.dumps(value.to_json())
+    return value