code: function( id ) {
  		if( !this.hasId( id ) ) {
  			throw new Error( 'Id not found' );
  		}
  
  		if( typeof this.config.id === 'string' ) {
  			delete this.config.id;
  		} else if( this.config.id instanceof Array ) {
  			var index = lm.utils.indexOf( id, this.config.id );
  			this.config.id.splice( index, 1 );
  		}
  	}
docs: Removes an existing id. Throws an error
  if the id is not present
  
  @public
  @param   {String} id
  
  @returns {void}