/// <summary>
/// Initializes a new instance of the <see cref="TemplateEngine.Template"/> class.
/// </summary>
/// <param name="snippet">Template string..</param>
/// <param name="lang">ILanguage object.</param>
/// <param name="assemblies">(C# only) Assemblies to reference in resulting program.</param>
/// <param name="namespaces">(C# only) Namespaces to include in code.</param>
/// <param name="json">(C# only) Json to access from code.</param>
public Template(string snippet, ILanguage lang,
string[] assemblies = null,
string[] namespaces = null,
string json = null)
{
language = lang;
language.AddExtras(assemblies, namespaces, json);
TemplateString = snippet;
}