original_string: public function dropMorphs($name, $indexName = null)
      {
          $this->dropIndex($indexName ?: $this->createIndexName('index', ["{$name}_type", "{$name}_id"]));
  
          $this->dropColumn("{$name}_type", "{$name}_id");
      }
code: public function dropMorphs($name, $indexName = null)
      {
          $this->dropIndex($indexName ?: $this->createIndexName('index', ["{$name}_type", "{$name}_id"]));
  
          $this->dropColumn("{$name}_type", "{$name}_id");
      }
code_tokens: public function dropMorphs ( $ name , $ indexName = null ) { $ this -> dropIndex ( $ indexName ? : $ this -> createIndexName ( 'index' , [ "{$name}_type" , "{$name}_id" ] ) ) ; $ this -> dropColumn ( "{$name}_type" , "{$name}_id" ) ; }
docstring: Indicate that the polymorphic columns should be dropped.
  
  @param  string  $name
  @param  string|null  $indexName
  @return void
docstring_tokens: Indicate that the polymorphic columns should be dropped .