export type ElementListReducer = (startingList: React.ReactElement[], itemClass?: string) => React.ReactElement[];
export type CategoriesListReducer = (startingList: string[]) => string[];
export type ElementListReducer = (startingList: React.ReactElement[], itemClass?: string) => React.ReactElement[];
export type CategoriesListReducer = (startingList: string[]) => string[];