Merge branch 'main_merge_0726' into 'main'

feat: OpenAPI Unification and batch K Line query

See merge request webull/openapi-python-sdk!14

Author: 方佳

webull-python-sdk-core/webullsdkcore/request.py

@@ -257,8 +257,7 @@ def __init__(
         if version is not None:
             self.add_header(hd.VERSION, version)
         self._signer_spec = signer_spec
-        if body_params is not None:
-            self.set_body_params(body_params)
+        self.set_body_params(body_params)
 
     def get_signed_header(self, host, app_key, app_secret):
         sc.calc_signature(self._header, host, self._action_name, self._params, self._body_params, app_key, app_secret, self._signer_spec)

webull-python-sdk-mdata/webullsdkmdata/request/get_batch_historical_bars_request.py

@@ -17,7 +17,7 @@
 
 class BatchHistoricalBarsRequest(ApiRequest):
     def __init__(self):
-        ApiRequest.__init__(self, "/market-data/batch-bars", version='v1', method="POST")
+        ApiRequest.__init__(self, "/market-data/batch-bars", version='v1', method="POST", body_params={})
 
     def set_symbols(self, symbol):
         self.add_body_params("symbols", symbol)