/// <summary>
/// Creates an argument parser for a single-valued argument of the given type.
/// </summary>
/// <typeparam name="T">The type of the argument.</typeparam>
/// <returns>The argument parser.</returns>
internal static ParseArgument <T> ParseOneArgument <T>() => argument =>
{
var values = ParseManyArguments <T>()(argument);
return((values == null ? default : values.Single()) !);
};
/// <summary> /// Creates an argument parser for a single-valued argument of the given type. /// </summary> /// <typeparam name="T">The type of the argument.</typeparam> /// <returns>The argument parser.</returns> internal static ParseArgument <T> ParseOneArgument <T>() => argument => ParseManyArguments <T>()(argument).SingleOrDefault();
