Why I tried to append a row when the row include a col using input ary value ,I got 500 error in response?

[amosjp]

const row_data = {
“a”: [‘value1’,‘value2’]
}
await base.appendRow(‘table_1’, row_data)
}

but I can’t append this row.I got error as bleow

[amosjp]

I got it’s reason, because this colum is only allow to single selection,so you can’t set a array input