original_string: public function getArgument($name)
      {
          foreach ($this->commandArguments as $argument) {
              if ($argument->getName() === $name) {
                  return $argument->getValue();
              }
          }
          return null;
      }
code: public function getArgument($name)
      {
          foreach ($this->commandArguments as $argument) {
              if ($argument->getName() === $name) {
                  return $argument->getValue();
              }
          }
          return null;
      }
code_tokens: public function getArgument ( $ name ) { foreach ( $ this -> commandArguments as $ argument ) { if ( $ argument -> getName ( ) === $ name ) { return $ argument -> getValue ( ) ; } } return null ; }
docstring: Returns null if the value doesn't exist. Returns default value if set from command, and the actual value
  if passed on the command line.
  
  @param string $name
  
  @return mixed|null
docstring_tokens: Returns null if the value doesn t exist . Returns default value if set from command and the actual value if passed on the command line .