cleaning day

app/Models/Shop/Invoice.php

@@ -3,6 +3,8 @@
 namespace App\Models\Shop;
 
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasMany;
 use Illuminate\Database\Eloquent\SoftDeletes;
 use LaracraftTech\LaravelDateScopes\DateScopes;
 use Venturecraft\Revisionable\RevisionableTrait;
@@ -20,22 +22,22 @@ class Invoice extends Model
 
     protected $dontKeepRevisionOf = ['updated_by', 'updated_at'];
 
-    public function payments()
+    public function payments(): HasMany
     {
         return $this->hasMany(InvoicePayment::class);
     }
 
-    public function order()
+    public function order(): BelongsTo
     {
         return $this->belongsTo(Order::class);
     }
 
-    public function customer()
+    public function customer(): BelongsTo
     {
         return $this->belongsTo(Customer::class, 'customer_id');
     }
 
-    public function address()
+    public function address(): BelongsTo
     {
         return $this->belongsTo(CustomerAddress::class, 'invoice_address_id');
     }