Serilog Json configuration reader

LoggerSettings.cs

public class LoggerSettings : ILoggerSettings
{
    private readonly IConfigurationSection _configuration;

    public LoggerSettings(IConfigurationSection configuration)
    {
        _configuration = configuration;
    }

    public IEnumerable<KeyValuePair<string, string>> Configurations
    {
        get
        {
            foreach (var childSection in _configuration.GetChildren())
            {
                yield return new KeyValuePair<string, string>(childSection["key"], childSection["value"]);
            }
        }
    }

    public void Configure(LoggerConfiguration loggerConfiguration)
    {
        loggerConfiguration.ReadFrom.KeyValuePairs(Configurations);
    }
}