IParameters

 IParameters
   procedure SetValueAsString(const Key: String; const Value: String);
   function GetValueAsString(const Key: String): String;
   
   procedure SetValueAsFloat(const Key: String; const Value: Single);
   function GetValueAsFloat(const Key: String): Single;
   
   procedure SetValueAsInteger(const Key: String; const Value: Int64);
   function GetValueAsInteger(const Key: String): Int64;
   
   procedure SetValueAsBoolean(const Key: String; const Value: Boolean);
   function GetValueAsBoolean(const Key: String): Boolean;
 end;