code: function(user) {
  		if (typeof user !== "object" || !user.id) return;
  		app.states.users[user.id] = user;
  		return user;
  	}
docs: @method setUser - user setter
  
  @param {Object} user - github user entity
  
  @param {String} user.id - required user field, which is used as user templral storage key.
  
  @returns {Object} user - returns user parameter