'int', 'insurance_id' => 'int', 'beneficiary_id' => 'int', 'health_care_sheet_id' => 'int', 'validating_agent_id' => 'int' ]; protected $fillable = [ 'request_id', 'act_id', 'insurance_id', 'beneficiary_id', 'to', 'state', 'health_care_sheet_id', 'validating_agent_id' ]; public function insurance() { return $this->belongsTo(NhInsurance::class, 'insurance_id'); } }