BelongsToDepend doesn't support Fields to attach fields to pivot table in BelongsToMany

[dan-lutd]

Not sure if BelongsToMany is supported per Issue 71
I am getting the error: Method Orlyapps\NovaBelongsToDepend\NovaBelongsToDepend::fields does not exist.

Where the fields in the fields method are the extra fields on the pivot table.

Without
->fields(
Text::make('Customer number'),
),

I get the Method Illuminate\Database\Eloquent\Collection::getKey does not exist. error