/// <summary>
/// Exit a parse tree produced by <see cref="NewGrammarParser.keyLetter"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitKeyLetter([NotNull] NewGrammarParser.KeyLetterContext context)
{
}
/// <summary>
/// Visit a parse tree produced by <see cref="NewGrammarParser.keyLetter"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitKeyLetter([NotNull] NewGrammarParser.KeyLetterContext context)
{
return(VisitChildren(context));
}