get_tls_ciphersuite_name
  
  Description:
  public unowned string get_tls_ciphersuite_name ()
  
 
  
    Gets the name of the TLS ciphersuite negotiated for this's connection.
    Parameters:
    
    Returns:
    
      
        | the name of the TLS ciphersuite,  or null if this's connection is not
             SSL. |