Move event from_json to bidi.py

Author: jman-sketch

py/selenium/webdriver/common/bidi/bidi.py

@@ -48,6 +48,11 @@ class BidiEvent(BidiObject):
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
 
+    @classmethod
+    def from_json(cls, json):
+        params = cls.param_class.from_json(json)
+        return cls(params)
+
 
 @dataclass
 class BidiCommand(BidiObject):

py/selenium/webdriver/common/bidi/network.py

@@ -165,10 +165,7 @@ class BeforeRequestSent(BidiEvent):
     params: BeforeRequestSentParameters
     method: typing.Literal["network.beforeRequestSent"] = "network.beforeRequestSent"
 
-    @classmethod
-    def from_json(cls, json):
-        params = BeforeRequestSentParameters.from_json(json)
-        return cls(params)
+    param_class = BeforeRequestSentParameters
 
 
 @dataclass