original_string: public function setAlias($aliases, $option)
  	{
  		$aliases = (array) $aliases;
  
  		foreach ($aliases as $alias)
  		{
  			$this->aliases[$alias] = $option;
  		}
  
  		return $this;
  	}
code: public function setAlias($aliases, $option)
  	{
  		$aliases = (array) $aliases;
  
  		foreach ($aliases as $alias)
  		{
  			$this->aliases[$alias] = $option;
  		}
  
  		return $this;
  	}
code_tokens: public function setAlias ( $ aliases , $ option ) { $ aliases = ( array ) $ aliases ; foreach ( $ aliases as $ alias ) { $ this -> aliases [ $ alias ] = $ option ; } return $ this ; }
docstring: Set Alias of an option.
  
  @param   array|string  $aliases  An alias of a option, can be array.
  @param   string        $option   The option which we want to add alias.
  
  @return  OptionSet  Return self to support chaining.
  
  @since   1.0
docstring_tokens: Set Alias of an option .