I have EmailMessage and EmailAttachment models with 1:M relationship defined. It makes sense on EmailAttachment to have method:
public function message()
{
return $this->belongsTo(EmailMessage::class);
}
And on EmailMessage:
public function attachments()
{
return $this->hasMany(EmailAttachment::class);
}
However hasMany produces right relation, belongsTo does not.

I am using stock config in this version: "beyondcode/laravel-er-diagram-generator": "^1.4"