/// <summary> Gets the favorite posts of a user.</summary>
/// <typeparam name="TBooru"> The api to use for calls.</typeparam>
/// <typeparam name="TBooruSelfUser"> The self user type to use.</typeparam>
/// <typeparam name="TBooruPost"> The post type use.</typeparam>
/// <param name="booruApi"> The api to use for the call.</param>
/// <param name="userInfo"> The user information to get the username from.</param>
/// <returns> A collection of all favorite posts of a user.</returns>
public static IAsyncEnumerable <TBooruPost> GetUserFavoritePagesByUsernameAsync <TBooru, TBooruSelfUser, TBooruPost>(this IUserFavoritePostBooruApi <TBooru, TBooruSelfUser, TBooruPost> booruApi, IBooruUserInfo <TBooru> userInfo)
where TBooru : IBooruSelfUserApi <TBooru, TBooruSelfUser>, IBooruPostApi <TBooru, TBooruPost>
where TBooruSelfUser : IBooruSelfUser <TBooru, TBooruSelfUser>
where TBooruPost : IBooruPost <TBooru, TBooruPost> =>
booruApi.GetUserFavoritePagesByUsernameAsync(userInfo.Username);
/// <summary> Gets a page of favorite posts of a specified user.</summary>
/// <typeparam name="TBooru"> The api to use for calls.</typeparam>
/// <typeparam name="TBooruSelfUser"> The self user type to use.</typeparam>
/// <typeparam name="TBooruPost"> The post type use.</typeparam>
/// <typeparam name="TBooruComment"> The comment type to use.</typeparam>
/// <param name="booruApi"> The api to use for the call.</param>
/// <param name="user"> The user to get the id from.</param>
/// <param name="skippedPosts"> The amount of posts to skip for the favorite page.</param>
/// <returns> A collection of favorite posts on one page.</returns>
public static IAsyncEnumerable <TBooruPost> GetUserFavoritePageByIdAsync <TBooru, TBooruSelfUser, TBooruPost, TBooruComment>(this IUserFavoritePostBooruApi <TBooru, TBooruSelfUser, TBooruPost> booruApi, IBooruUser <TBooru> user, int skippedPosts = 0)
where TBooru : IBooruSelfUserApi <TBooru, TBooruSelfUser>, IBooruPostApi <TBooru, TBooruPost>
where TBooruSelfUser : IBooruSelfUser <TBooru, TBooruSelfUser>
where TBooruPost : IBooruPost <TBooru, TBooruPost>
where TBooruComment : IBooruComment <TBooru> =>
booruApi.GetUserFavoritePageByIdAsync(user.UserId, skippedPosts);
