An AppendParameterBinding binds an AppendParameter of an invoked Mapping to a connection of the invoker. Execution of the mapping may append to the connection.
syntax: 
				formalName appendsTo connection;
			
conformsTo 
				
					MappingParameterBinding
				
			
Associations
				
value : ::ConnectionVariable[1]
			
The value or collection of values to bind to boundVariable