code: public static Class<?>[] types( TypedArgument... arguments )
      {
          Class[] types = new Class[arguments.length];
          for ( int i = 0; i < types.length; i++ )
          {
              types[i] = arguments[i].type;
          }
          return types;
      }
docs: Extract the parameter types from an array of {@link TypedArgument}s.
  
  @param arguments the arguments to extract the types from.
  @return the types of the arguments.