Helpful interface for extending data contract things in unique, often adhoc ways

Namespace: Contracts.Data
Assembly: Contracts (in Contracts.dll)

<System.Reflection.Obfuscation(Exclude = true, ApplyToMembers = true)> _ 
Public Interface IExtensionData
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[System.Reflection.Obfuscation(Exclude = true, ApplyToMembers = true)] 
public interface IExtensionData
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[System.Reflection.Obfuscation(Exclude = true, ApplyToMembers = true)] 
public interface class IExtensionData
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public  
System.Reflection.Obfuscation(Exclude = true, ApplyToMembers = true) 
interface IExtensionData
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.NET Framework

Supported in: 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1