fix: ignore generated proto types and resolve pyright issues

Signed-off-by: Luca Muscariello <muscariello@ieee.org>

Author: muscariello

pyrightconfig.json

@@ -0,0 +1,5 @@
+{
+    "ignore": [
+        "src/a2a/types"
+    ]
+}

src/a2a/server/jsonrpc_models.py

@@ -24,33 +24,33 @@ class JSONRPCError(JSONRPCBaseModel):
 class JSONParseError(JSONRPCError):
     """Error raised when invalid JSON was received by the server."""
 
-    code: Literal[-32700] = -32700
+    code: Literal[-32700] = -32700  # pyright: ignore [reportIncompatibleVariableOverride]
     message: str = 'Parse error'
 
 
 class InvalidRequestError(JSONRPCError):
     """Error raised when the JSON sent is not a valid Request object."""
 
-    code: Literal[-32600] = -32600
+    code: Literal[-32600] = -32600  # pyright: ignore [reportIncompatibleVariableOverride]
     message: str = 'Invalid Request'
 
 
 class MethodNotFoundError(JSONRPCError):
     """Error raised when the method does not exist / is not available."""
 
-    code: Literal[-32601] = -32601
+    code: Literal[-32601] = -32601  # pyright: ignore [reportIncompatibleVariableOverride]
     message: str = 'Method not found'
 
 
 class InvalidParamsError(JSONRPCError):
     """Error raised when invalid method parameter(s)."""
 
-    code: Literal[-32602] = -32602
+    code: Literal[-32602] = -32602  # pyright: ignore [reportIncompatibleVariableOverride]
     message: str = 'Invalid params'
 
 
 class InternalError(JSONRPCError):
     """Error raised when internal JSON-RPC error."""
 
-    code: Literal[-32603] = -32603
+    code: Literal[-32603] = -32603  # pyright: ignore [reportIncompatibleVariableOverride]
     message: str = 'Internal error'

src/a2a/server/models.py

@@ -1,4 +1,4 @@
-from typing import TYPE_CHECKING, Any, Generic, TypeVar
+from typing import TYPE_CHECKING, Any, Generic, TypeVar, cast
 
 
 if TYPE_CHECKING:
@@ -65,7 +65,7 @@ def process_bind_param(
         if isinstance(value, ProtoMessage):
             return MessageToDict(value, preserving_proto_field_name=False)
         if isinstance(value, BaseModel):
-            return value.model_dump(mode='json')
+            return cast('BaseModel', value).model_dump(mode='json')
         return value  # type: ignore[return-value]
 
     def process_result_value(
@@ -112,7 +112,7 @@ def process_bind_param(
                     MessageToDict(item, preserving_proto_field_name=False)
                 )
             elif isinstance(item, BaseModel):
-                result.append(item.model_dump(mode='json'))
+                result.append(cast('BaseModel', item).model_dump(mode='json'))
             else:
                 result.append(item)  # type: ignore[arg-type]
         return result

src/a2a/server/tasks/database_task_store.py

@@ -1,5 +1,7 @@
 import logging
 
+from typing import Any, cast
+
 
 try:
     from sqlalchemy import Table, delete, select
@@ -126,7 +128,9 @@ def _from_orm(self, task_model: TaskModel) -> Task:
         if task_model.history:
             task.history.extend(task_model.history)
         if task_model.task_metadata:
-            task.metadata.update(task_model.task_metadata)
+            task.metadata.update(
+                cast('dict[str, Any]', task_model.task_metadata)
+            )
         return task
 
     async def save(