Closing brace should be followed by blank line (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1513.md)

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

A closing brace should not be preceded by a blank line (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1508.md)

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.

Closing parenthesis should not be followed by a space (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1009.md)

A property should not follow a method (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1201.md)

A property should not follow a method (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1201.md)

Operator '+=' should be preceded by whitespace. (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1003.md)

Operator '(long)' should not be followed by whitespace. (https://github.com/DotNetAnalyzers/StyleCopAnalyzers/blob/master/documentation/SA1003.md)