code: private function getNamespacesFromTokens(Tokens $tokens)
      {
          return array_map(function (NamespaceAnalysis $info) {
              return $info->getFullName();
          }, (new NamespacesAnalyzer())->getDeclarations($tokens));
      }
docs: @param Tokens $tokens
  
  @return array<string, string> A list of all FQN namespaces in the file with the short name as key