code: function setLoading( state, params, newStatus ) {
  	const queries = ( state.queries && { ...state.queries } ) || {};
  	const key = getSerializedProductsQuery( params );
  	queries[ key ] = { ...( queries[ key ] || {} ), isLoading: newStatus };
  	return queries;
  }
docs: Set the loading status for a param set in state
  
  @param  {Object}  state     The current state
  @param  {Object}  params    Params of the query to update
  @param  {Boolean} newStatus The new value to save
  @return {Object}            Updated isLoading state