Fixed inspection issues.

src/Entity/Parts/PartTraits/InstockTrait.php

@@ -72,6 +72,8 @@ trait InstockTrait
     /**
      * Adds the given part lot, to the list of part lots.
      * The part lot is assigned to this part.
+     * @param  PartLot  $lot
+     * @return $this
      */
     public function addPartLot(PartLot $lot): self
     {
@@ -85,6 +87,7 @@ trait InstockTrait
      * Removes the given part lot from the list of part lots.
      *
      * @param PartLot $lot the part lot that should be deleted
+     * @return $this
      */
     public function removePartLot(PartLot $lot): self
     {
@@ -105,6 +108,8 @@ trait InstockTrait
     /**
      * Sets the measurement unit in which the part's amount should be measured.
      * Set to null, if the part should be measured in quantities.
+     * @param  MeasurementUnit|null  $partUnit
+     * @return $this
      */
     public function setPartUnit(?MeasurementUnit $partUnit): self
     {
@@ -149,6 +154,7 @@ trait InstockTrait
      * Part Lots that have unknown value or are expired, are not used for this value.
      *
      * @return float The amount of parts given in partUnit
+     *
      */
     public function getAmountSum(): float
     {
@@ -175,6 +181,7 @@ trait InstockTrait
      * See getPartUnit() for the associated unit.
      *
      * @param float $new_minamount the new count of parts which should be in stock at least
+     * @return $this
      */
     public function setMinAmount(float $new_minamount): self
     {