/// <summary>
/// Test explicitly optional integer. Please put a header 'headerParameter'
/// => null.
/// </summary>
/// <param name='operations'>
/// The operations group for this extension method.
/// </param>
/// <param name='headerParameter'>
/// </param>
public static void PostOptionalArrayHeader(this IExplicitModel operations, IList <string> headerParameter = default(IList <string>))
{
operations.PostOptionalArrayHeaderAsync(headerParameter).GetAwaiter().GetResult();
}