public async Task <LeftCollection> List(LeftQuery query)
{
var dbQuery = await query.Create(this.Entities);
var total = await dbQuery.CountAsync();
dbQuery = dbQuery.Skip(query.SkipTo(total)).Take(query.Limit);
var results = await mapper.ProjectLeft(dbQuery).ToListAsync();
return(new LeftCollection(query, total, results));
}
