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/AccountPosition.md

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+# AccountPosition
+
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**market_id** | **int** |  | 
+**symbol** | **str** |  | 
+**initial_margin_fraction** | **str** |  | 
+**open_order_count** | **int** |  | 
+**pending_order_count** | **int** |  | 
+**position_tied_order_count** | **int** |  | 
+**sign** | **int** |  | 
+**position** | **str** |  | 
+**avg_entry_price** | **str** |  | 
+**position_value** | **str** |  | 
+**unrealized_pnl** | **str** |  | 
+**realized_pnl** | **str** |  | 
+**liquidation_price** | **str** |  | 
+**total_funding_paid_out** | **str** |  | [optional] 
+**margin_mode** | **int** |  | 
+**allocated_margin** | **str** |  | 
+
+## Example
+
+```python
+from lighter.models.account_position import AccountPosition
+
+# TODO update the JSON string below
+json = "{}"
+# create an instance of AccountPosition from a JSON string
+account_position_instance = AccountPosition.from_json(json)
+# print the JSON string representation of the object
+print(AccountPosition.to_json())
+
+# convert the object into a dict
+account_position_dict = account_position_instance.to_dict()
+# create an instance of AccountPosition from a dict
+account_position_from_dict = AccountPosition.from_dict(account_position_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)
+
+