Minor refactoring

Author: rtheunissen

src/Map.php

@@ -109,7 +109,8 @@ public function skip(int $position): Pair
     }
 
     /**
-     * Merge an array of values with the current Map
+     * Returns the result of associating all keys of a given traversable object
+     * or array with their corresponding values, as well as those of this map.
      *
      * @param array|\Traversable $values
      *

src/Traits/GenericSequence.php

@@ -1,7 +1,6 @@
 <?php
 namespace Ds\Traits;
 
-use Ds\Collection;
 use Ds\Sequence;
 use OutOfRangeException;
 use UnderflowException;
@@ -149,7 +148,7 @@ public function last()
             throw new UnderflowException();
         }
 
-        return $this->array[ count($this) - 1];
+        return $this->array[count($this) - 1];
     }
 
     /**