Adds all of the key/value pairs from collection into our request header.
            
 Declaration Syntax
 Declaration Syntax| C# | 
public void AddHeaders( NameValueCollection collection )
 Parameters
 Parameters- collection (NameValueCollection)
- A collection of key/value headers
 Declaration Syntax
 Declaration Syntax| C# | 
public void AddHeaders( NameValueCollection collection )
 Parameters
 Parameters