private void CleanOneTable <T>() where T : class
{
//string QUERY = "TRUNCATE TABLE [" + typeof(T).Name + "]";
_context.Set <T>().RemoveRange(_context.Set <T>());
}
public async Task Create(TEntity entity)
{
await _context.Set <TEntity>().AddAsync(entity);
await _context.SaveChangesAsync();
}