Few more comments

src/HashMap.php

@@ -10,12 +10,12 @@ namespace DNW\Skills;
 final class HashMap
 {
     /**
-     * @var mixed[] $hashToValue
+     * @var mixed[] $hashToValue Store the hash to value mapping.
      */
     private array $hashToValue = [];
 
     /**
-     * @var mixed[] $hashToKey
+     * @var mixed[] $hashToKey Store the hash to original key mapping.
      */
     private array $hashToKey = [];
 

src/TrueSkill/Layers/TeamPerformancesToTeamPerformanceDifferencesLayer.php

@@ -29,11 +29,7 @@ final class TeamPerformancesToTeamPerformanceDifferencesLayer extends TrueSkillF
         }
     }
 
-    private function createTeamPerformanceToDifferenceFactor(
-        Variable $strongerTeam,
-        Variable $weakerTeam,
-        Variable $output
-    ): GaussianWeightedSumFactor
+    private function createTeamPerformanceToDifferenceFactor(Variable $strongerTeam, Variable $weakerTeam, Variable $output): GaussianWeightedSumFactor
     {
         $teams = [$strongerTeam, $weakerTeam];
         $weights = [1.0, -1.0];

src/TrueSkill/TrueSkillFactorGraph.php

@@ -33,6 +33,8 @@ final class TrueSkillFactorGraph extends FactorGraph
     private readonly PlayerPriorValuesToSkillsLayer $priorLayer;
 
     /**
+     * Constructor
+     *
      * @param GameInfo $gameInfo  Parameters for the game.
      * @param Team[]   $teams     A mapping of team players and their ratings.
      * @param int[]    $teamRanks The ranks of the teams where 1 is first place. For a tie, repeat the number (e.g. 1, 2, 2).

src/TrueSkill/TwoPlayerTrueSkillCalculator.php

@@ -32,11 +32,7 @@ final class TwoPlayerTrueSkillCalculator extends SkillCalculator
      * {@inheritdoc}
      */
     #[\Override]
-    public function calculateNewRatings(
-        GameInfo $gameInfo,
-        array $teams,
-        array $teamRanks
-    ): RatingContainer
+    public function calculateNewRatings(GameInfo $gameInfo, array $teams, array $teamRanks): RatingContainer
     {
         // Basic argument checking
         $this->validateTeamCountAndPlayersCountPerTeam($teams);

src/TrueSkill/TwoTeamTrueSkillCalculator.php

@@ -64,13 +64,7 @@ final class TwoTeamTrueSkillCalculator extends SkillCalculator
         return $results;
     }
 
-    private static function updatePlayerRatings(
-        GameInfo $gameInfo,
-        RatingContainer $newPlayerRatings,
-        Team $selfTeam,
-        Team $otherTeam,
-        PairwiseComparison $selfToOtherTeamComparison
-    ): void
+    private static function updatePlayerRatings(GameInfo $gameInfo, RatingContainer $newPlayerRatings, Team $selfTeam, Team $otherTeam, PairwiseComparison $selfToOtherTeamComparison): void
     {
         $drawMargin = DrawMargin::getDrawMarginFromDrawProbability(
             $gameInfo->getDrawProbability(),