<PackageReference Include="Serilog.Sinks.Logentries" Version="4.0.0-dev-00041" />

Serilog.LoggerConfigurationLogentriesExtensions

public static LoggerConfiguration Logentries(this LoggerSinkConfiguration loggerConfiguration, string token, bool useSsl = true, int batchPostingLimit = 50, TimeSpan? period = default, LogEventLevel restrictedToMinimumLevel = 0, string outputTemplate = "{Timestamp:G} [{Level}] {Message}{NewLine}{Exception}", IFormatProvider formatProvider = null, string url = "data.logentries.com")

public static LoggerConfiguration Logentries(this LoggerSinkConfiguration loggerConfiguration, string token, ITextFormatter textFormatter, bool useSsl = true, int batchPostingLimit = 50, TimeSpan? period = default, LogEventLevel restrictedToMinimumLevel = 0, string url = "data.logentries.com")