/// <summary>
/// Check if the given symbol is delisted or not.
/// </summary>
/// <param name="symbolKey">The <see cref="SymbolKey"/> to identify the symbol.</param>
/// <returns>True if symbol is new. Otherwise False.</returns>
public bool HasChanges(SymbolKey symbolKey)
{
return(_existingSymbolsMap.ContainsKey(symbolKey) && !_downloadedSymbolsMap.ContainsKey(symbolKey));
}
/// <summary>
/// Add Symbol to changeset to be delisted
/// </summary>
/// <param name="symbolKey">The <see cref="SymbolKey"/> to identify the symbol.</param>
public void AddChange(SymbolKey symbolKey)
{
_delistedSymbolIds.Add(_existingSymbolsMap[symbolKey].Id);
}