Use 'GeneratedRegexAttribute' to generate the regular expression implementation at compile-time. (https://learn.microsoft.com/dotnet/fundamentals/syslib-diagnostics/syslib1045)

Use 'GeneratedRegexAttribute' to generate the regular expression implementation at compile-time. (https://learn.microsoft.com/dotnet/fundamentals/syslib-diagnostics/syslib1045)

Possible null reference argument for parameter 'payload' in 'Task<PublishResult> HiveMQClient.PublishAsync(string topic, byte[] payload, QualityOfService qos = QualityOfService.AtMostOnceDelivery)'.

This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread.

An opening brace should not be followed by a blank line. (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1505.md)

Collection initialization can be simplified (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/style-rules/ide0300)

Collection initialization can be simplified (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/style-rules/ide0300)

Collection initialization can be simplified (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/style-rules/ide0300)

Collection initialization can be simplified (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/style-rules/ide0300)