docs: 更新 lighter-python-main 文档，添加示例代码和 API 说明，重构部分内容以提高可读性

docs/lighter/lighter-python-main/docs/RespSendTx.md

@@ -0,0 +1,32 @@
+# RespSendTx
+
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**code** | **int** |  | 
+**message** | **str** |  | [optional] 
+**tx_hash** | **str** |  | 
+**predicted_execution_time_ms** | **int** |  | 
+
+## Example
+
+```python
+from lighter.models.resp_send_tx import RespSendTx
+
+# TODO update the JSON string below
+json = "{}"
+# create an instance of RespSendTx from a JSON string
+resp_send_tx_instance = RespSendTx.from_json(json)
+# print the JSON string representation of the object
+print(RespSendTx.to_json())
+
+# convert the object into a dict
+resp_send_tx_dict = resp_send_tx_instance.to_dict()
+# create an instance of RespSendTx from a dict
+resp_send_tx_from_dict = RespSendTx.from_dict(resp_send_tx_dict)
+```
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
+