diff --git a/src/SKIT.FlurlHttpClient.Wechat.Ads/Utilities/__Internal/FileNameToContentTypeMapper.cs b/src/SKIT.FlurlHttpClient.Wechat.Ads/Utilities/[Internal]/FileNameToContentTypeMapper.cs
similarity index 100%
rename from src/SKIT.FlurlHttpClient.Wechat.Ads/Utilities/__Internal/FileNameToContentTypeMapper.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Ads/Utilities/[Internal]/FileNameToContentTypeMapper.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Utilities/__Internal/HttpContentBuilder.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Utilities/[Internal]/HttpContentBuilder.cs
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rename from src/SKIT.FlurlHttpClient.Wechat.Api/Utilities/__Internal/HttpContentBuilder.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Api/Utilities/[Internal]/HttpContentBuilder.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Utilities/__Internal/WxMsgCryptor.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Utilities/[Internal]/WxMsgCryptor.cs
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rename from src/SKIT.FlurlHttpClient.Wechat.Api/Utilities/__Internal/WxMsgCryptor.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Api/Utilities/[Internal]/WxMsgCryptor.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.OpenAI/Utilities/__Internal/WxMsgCryptor.cs b/src/SKIT.FlurlHttpClient.Wechat.OpenAI/Utilities/[Internal]/WxMsgCryptor.cs
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rename from src/SKIT.FlurlHttpClient.Wechat.OpenAI/Utilities/__Internal/WxMsgCryptor.cs
rename to src/SKIT.FlurlHttpClient.Wechat.OpenAI/Utilities/[Internal]/WxMsgCryptor.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.OpenAI/Utilities/__Internal/XmlHelper.cs b/src/SKIT.FlurlHttpClient.Wechat.OpenAI/Utilities/[Internal]/XmlHelper.cs
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rename from src/SKIT.FlurlHttpClient.Wechat.OpenAI/Utilities/__Internal/XmlHelper.cs
rename to src/SKIT.FlurlHttpClient.Wechat.OpenAI/Utilities/[Internal]/XmlHelper.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayBusiness/Constants/__Internal/FormDataFields.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayBusiness/Constants/[Internal]/FormDataFields.cs
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rename from src/SKIT.FlurlHttpClient.Wechat.TenpayBusiness/Constants/__Internal/FormDataFields.cs
rename to src/SKIT.FlurlHttpClient.Wechat.TenpayBusiness/Constants/[Internal]/FormDataFields.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayBusiness/Extensions/__Internal/SystemCollectionsDictionaryExtensions.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayBusiness/Extensions/[Internal]/SystemCollectionsDictionaryExtensions.cs
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rename from src/SKIT.FlurlHttpClient.Wechat.TenpayBusiness/Extensions/__Internal/SystemCollectionsDictionaryExtensions.cs
rename to src/SKIT.FlurlHttpClient.Wechat.TenpayBusiness/Extensions/[Internal]/SystemCollectionsDictionaryExtensions.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayBusiness/Extensions/__Internal/WechatTenpayBusinessClientSigningExtensions.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayBusiness/Extensions/[Internal]/WechatTenpayBusinessClientSigningExtensions.cs
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rename from src/SKIT.FlurlHttpClient.Wechat.TenpayBusiness/Extensions/__Internal/WechatTenpayBusinessClientSigningExtensions.cs
rename to src/SKIT.FlurlHttpClient.Wechat.TenpayBusiness/Extensions/[Internal]/WechatTenpayBusinessClientSigningExtensions.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayBusiness/Utilities/__Internal/HttpContentBuilder.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayBusiness/Utilities/[Internal]/HttpContentBuilder.cs
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rename from src/SKIT.FlurlHttpClient.Wechat.TenpayBusiness/Utilities/__Internal/HttpContentBuilder.cs
rename to src/SKIT.FlurlHttpClient.Wechat.TenpayBusiness/Utilities/[Internal]/HttpContentBuilder.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayBusiness/Utilities/__Internal/ReflectionUtility.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayBusiness/Utilities/[Internal]/ReflectionUtility.cs
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rename from src/SKIT.FlurlHttpClient.Wechat.TenpayBusiness/Utilities/__Internal/ReflectionUtility.cs
rename to src/SKIT.FlurlHttpClient.Wechat.TenpayBusiness/Utilities/[Internal]/ReflectionUtility.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Converters/__Internal/Newtonsoft.Json/Boolean/YesOrNoBooleanConverter.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Converters/[Internal]/Newtonsoft.Json/Boolean/YesOrNoBooleanConverter.cs
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rename from src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Converters/__Internal/Newtonsoft.Json/Boolean/YesOrNoBooleanConverter.cs
rename to src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Converters/[Internal]/Newtonsoft.Json/Boolean/YesOrNoBooleanConverter.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Converters/__Internal/Newtonsoft.Json/Object/FlattenNArrayObjectConverterBase.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Converters/[Internal]/Newtonsoft.Json/Object/FlattenNArrayObjectConverterBase.cs
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rename from src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Converters/__Internal/Newtonsoft.Json/Object/FlattenNArrayObjectConverterBase.cs
rename to src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Converters/[Internal]/Newtonsoft.Json/Object/FlattenNArrayObjectConverterBase.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Converters/__Internal/Newtonsoft.Json/Object/StringifiedObjectInJsonFormatConverter.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Converters/[Internal]/Newtonsoft.Json/Object/StringifiedObjectInJsonFormatConverter.cs
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rename from src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Converters/__Internal/Newtonsoft.Json/Object/StringifiedObjectInJsonFormatConverter.cs
rename to src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Converters/[Internal]/Newtonsoft.Json/Object/StringifiedObjectInJsonFormatConverter.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Converters/__Internal/System.Text.Json/Boolean/YesOrNoBooleanConverter.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Converters/[Internal]/System.Text.Json/Boolean/YesOrNoBooleanConverter.cs
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rename from src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Converters/__Internal/System.Text.Json/Boolean/YesOrNoBooleanConverter.cs
rename to src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Converters/[Internal]/System.Text.Json/Boolean/YesOrNoBooleanConverter.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Converters/__Internal/System.Text.Json/Object/FlattenNArrayObjectConverterBase.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Converters/[Internal]/System.Text.Json/Object/FlattenNArrayObjectConverterBase.cs
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rename from src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Converters/__Internal/System.Text.Json/Object/FlattenNArrayObjectConverterBase.cs
rename to src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Converters/[Internal]/System.Text.Json/Object/FlattenNArrayObjectConverterBase.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Utilities/__Internal/ReflectionHelper.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Utilities/[Internal]/ReflectionHelper.cs
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rename from src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Utilities/__Internal/ReflectionHelper.cs
rename to src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Utilities/[Internal]/ReflectionHelper.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Utilities/__Internal/RequestSigner.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Utilities/[Internal]/RequestSigner.cs
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rename from src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Utilities/__Internal/RequestSigner.cs
rename to src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Utilities/[Internal]/RequestSigner.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Utilities/__Internal/XmlHelper.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Utilities/[Internal]/XmlHelper.cs
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rename from src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Utilities/__Internal/XmlHelper.cs
rename to src/SKIT.FlurlHttpClient.Wechat.TenpayV2/Utilities/[Internal]/XmlHelper.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Constants/__Internal/FormDataFields.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Constants/[Internal]/FormDataFields.cs
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rename from src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Constants/__Internal/FormDataFields.cs
rename to src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Constants/[Internal]/FormDataFields.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Converters/__Internal/Newtonsoft.Json/Boolean/YesOrNoBooleanConverter.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Converters/[Internal]/Newtonsoft.Json/Boolean/YesOrNoBooleanConverter.cs
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rename from src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Converters/__Internal/Newtonsoft.Json/Boolean/YesOrNoBooleanConverter.cs
rename to src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Converters/[Internal]/Newtonsoft.Json/Boolean/YesOrNoBooleanConverter.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Converters/__Internal/System.Text.Json/Boolean/YesOrNoBooleanConverter.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Converters/[Internal]/System.Text.Json/Boolean/YesOrNoBooleanConverter.cs
similarity index 100%
rename from src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Converters/__Internal/System.Text.Json/Boolean/YesOrNoBooleanConverter.cs
rename to src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Converters/[Internal]/System.Text.Json/Boolean/YesOrNoBooleanConverter.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Extensions/__Internal/WechatTenpayClientSigningExtensions.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Extensions/[Internal]/WechatTenpayClientSigningExtensions.cs
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rename from src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Extensions/__Internal/WechatTenpayClientSigningExtensions.cs
rename to src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Extensions/[Internal]/WechatTenpayClientSigningExtensions.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Utilities/__Internal/HttpContentBuilder.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Utilities/[Internal]/HttpContentBuilder.cs
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rename from src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Utilities/__Internal/HttpContentBuilder.cs
rename to src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Utilities/[Internal]/HttpContentBuilder.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Utilities/__Internal/ReflectionHelper.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Utilities/[Internal]/ReflectionHelper.cs
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rename from src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Utilities/__Internal/ReflectionHelper.cs
rename to src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Utilities/[Internal]/ReflectionHelper.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/Utilities/__Internal/HttpContentBuilder.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/Utilities/[Internal]/HttpContentBuilder.cs
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rename from src/SKIT.FlurlHttpClient.Wechat.Work/Utilities/__Internal/HttpContentBuilder.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Work/Utilities/[Internal]/HttpContentBuilder.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/Utilities/__Internal/WxMsgCryptor.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/Utilities/[Internal]/WxMsgCryptor.cs
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rename from src/SKIT.FlurlHttpClient.Wechat.Work/Utilities/__Internal/WxMsgCryptor.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Work/Utilities/[Internal]/WxMsgCryptor.cs