TryConverterTOutput - делегат

public delegate bool TryConverter<TOutput>(
	string inputValue,
	out TOutput resultValue
)

Public Delegate Function TryConverter(Of TOutput) ( 
	inputValue As String,
	<OutAttribute> ByRef resultValue As TOutput
) As Boolean

generic<typename TOutput>
public delegate bool TryConverter(
	String^ inputValue, 
	[OutAttribute] TOutput% resultValue
)

type TryConverter = 
    delegate of 
        inputValue : string * 
        resultValue : 'TOutput byref -> bool