fix: Pick unexpected values from response

Example
=======

From Twitter oEmbed, embed content for User account has type=rich but 'url' is included.

Author: attakei

oembedpy/consumer.py

@@ -60,4 +60,4 @@ def fetch_content(url: str, params: RequestParameters) -> types.Content:
     Type = data.get("type", "").title()
     if not (Type and hasattr(types, Type)):
         raise ValueError("Invalid type")
-    return getattr(types, data["type"].title())(**data)
+    return getattr(types, data["type"].title()).from_dict(data)

oembedpy/ext/sphinx.py

@@ -14,7 +14,7 @@
     logging.error(msg)
     raise err
 
-from oembedpy import consumer
+from oembedpy import consumer, discovery
 
 
 class oembed(nodes.General, nodes.Element):  # noqa: D101,E501
@@ -30,8 +30,7 @@ class OembedDirective(Directive):  # noqa: D101
     }
 
     def run(self):  # noqa: D102
-        url = consumer.discover(self.arguments[0])
-        url, params = consumer.parse(url)
+        url, params = discovery.find_from_content(self.arguments[0])
         if "maxwidth" in self.options:
             params.max_width = self.options["maxwidth"]
         if "maxheight" in self.options:

oembedpy/types.py

@@ -4,7 +4,10 @@
 Please see https://oembed.com/
 """
 from dataclasses import dataclass
-from typing import Optional, Union
+from inspect import signature
+from typing import Any, Dict, Optional, Type, TypeVar, Union
+
+T = TypeVar("T", bound="_Required")
 
 
 @dataclass
@@ -13,6 +16,18 @@ class _Required:
 
     type: str
     version: str
+    _extra: Dict[str, Any]
+
+    @classmethod
+    def from_dict(cls: Type[T], data: Dict[str, Any]) -> T:
+        cls_fields = {field for field in signature(cls).parameters}
+        cls_kwargs, extra = {}, {}
+        for k, v in data.items():
+            if k in cls_fields:
+                cls_kwargs[k] = v
+            else:
+                extra[k] = v
+        return cls(**cls_kwargs, _extra=extra)
 
 
 @dataclass