/// <summary>
/// Reeturns a string representation of <paramref name="count"/> blocks having indices starting from <paramref name="fromBlock"/>.
/// </summary>
public string ToDisplayString(int fromBlock, int count)
{
var sb = StringBuilderPool.Acquire();
for (int i = Math.Max(0, fromBlock), c = Math.Min(fromBlock + count, blockDb.BlockCount); i < c; ++i)
{
sb.AppendLine(JsonConvert.SerializeObject(blockDb.GetBlock(i), Formatting.Indented));
}
return(StringBuilderPool.GetStringAndRelease(sb));
}