#if NET20 || NET30 || NET35 || !NET_4_6

namespace System
{
    /// <summary>
    /// Encapsulates a method that has 6 parameters and does not return a value.
    /// </summary>
    /// <typeparam name="T1">The type of the first parameter of the method that this delegate encapsulates.</typeparam>
    /// <typeparam name="T2">The type of the second parameter of the method that this delegate encapsulates.</typeparam>
    /// <typeparam name="T3">The type of the third parameter of the method that this delegate encapsulates.</typeparam>
    /// <typeparam name="T4">The type of the fourth parameter of the method that this delegate encapsulates.</typeparam>
    /// <typeparam name="T5">The type of the fifth parameter of the method that this delegate encapsulates.</typeparam>
    /// <typeparam name="T6">The type of the sixth parameter of the method that this delegate encapsulates.</typeparam>
    /// <param name="arg1">The first parameter of the method that this delegate encapsulates.</param>
    /// <param name="arg2">The second parameter of the method that this delegate encapsulates.</param>
    /// <param name="arg3">The third parameter of the method that this delegate encapsulates.</param>
    /// <param name="arg4">The fourth parameter of the method that this delegate encapsulates.</param>
    /// <param name="arg5">The fifth parameter of the method that this delegate encapsulates.</param>
    /// <param name="arg6">The sixth parameter of the method that this delegate encapsulates.</param>
#if NETCF

    public delegate void Action<T1, T2, T3, T4, T5, T6>(T1 arg1, T2 arg2, T3 arg3, T4 arg4, T5 arg5, T6 arg6);

#else

    public delegate void Action<in T1, in T2, in T3, in T4, in T5, in T6>(T1 arg1, T2 arg2, T3 arg3, T4 arg4, T5 arg5, T6 arg6);

#endif
}

#endif