public async Task <IEnumerable <T> > ReadAsync(Expression <Func <T, bool> > filterExpression = null)
{
if (filterExpression == null)
{
filterExpression = entity => true;
}
await EnsureDbAndTableExistOrCreateAsync();
IAsyncEnumerator <T> enumerable = Connection.RunAsync(Table.Filter(filterExpression));
return(await enumerable.FlushAsync());
}