'integer','items'=>'array','total_amount'=>'decimal:2','discount_amount'=>'decimal:2','actual_amount'=>'decimal:2','status'=>'integer','pay_method'=>'integer','paid_at'=>'datetime']; } public function customer(): BelongsTo { return $this->belongsTo(Customer::class); } public function creator(): BelongsTo { return $this->belongsTo(User::class, 'created_by'); } public function executions(): HasMany { return $this->hasMany(ServiceExecution::class); } }