Use CallerMemberName Attribute so you do not have any magic strings in settings.cs (#73)

diff --git a/PokemonGo/RocketAPI/Console/Settings.cs b/PokemonGo/RocketAPI/Console/Settings.cs
index e85349f..0283133 100644
--- a/PokemonGo/RocketAPI/Console/Settings.cs
+++ b/PokemonGo/RocketAPI/Console/Settings.cs
@@ -2,30 +2,31 @@
 using PokemonGo.RocketAPI.Enums;
 using PokemonGo.RocketAPI.GeneratedCode;
 using System;
+using System.Runtime.CompilerServices;

 namespace PokemonGo.RocketAPI.Console
 {
     public class Settings : ISettings
     {
-        public AuthType AuthType => (AuthType)Enum.Parse(typeof(AuthType), GetSetting("AuthType"));
-        public  string PtcUsername => GetSetting("PtcUsername") != string.Empty ? GetSetting("PtcUsername") : "username";
-        public  string PtcPassword => GetSetting("PtcPassword") != string.Empty? GetSetting("PtcPassword") : "password";
-        public double DefaultLatitude => GetSetting("DefaultLatitude") != string.Empty ? double.Parse(GetSetting("DefaultLatitude")) : 52.379189; //Default Amsterdam Central Station
-        public double DefaultLongitude => GetSetting("DefaultLongitude") != string.Empty ? double.Parse(GetSetting("DefaultLongitude")) : 4.899431;//Default Amsterdam Central Station
+        public AuthType AuthType => (AuthType)Enum.Parse(typeof(AuthType), GetSetting());
+        public  string PtcUsername => GetSetting() != string.Empty ? GetSetting() : "username";
+        public  string PtcPassword => GetSetting() != string.Empty? GetSetting() : "password";
+        public double DefaultLatitude => GetSetting() != string.Empty ? double.Parse(GetSetting()) : 52.379189; //Default Amsterdam Central Station
+        public double DefaultLongitude => GetSetting() != string.Empty ? double.Parse(GetSetting()) : 4.899431;//Default Amsterdam Central Station
         public  string GoogleRefreshToken
         {
-            get { return GetSetting("GoogleRefreshToken") != string.Empty ? GetSetting("GoogleRefreshToken") : string.Empty; }
-            set { SetSetting("GoogleRefreshToken", value); }
+            get { return GetSetting() != string.Empty ? GetSetting() : string.Empty; }
+            set { SetSetting(value); }
         }

-        private string GetSetting(string key)
+        private string GetSetting([CallerMemberName]string key = null)
         {
             return ConfigurationManager.AppSettings[key];
         }
-        private void SetSetting(string key, string value)
+        private void SetSetting(string value, [CallerMemberName]string key = null)
         {
             var configFile = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
-            configFile.AppSettings.Settings[key].Value = value;
+            if (key != null) configFile.AppSettings.Settings[key].Value = value;
             configFile.Save();
         }
     }