public function toRtf()
	{
		$rtf = '{';
		
		foreach ($this->children as $child) {
			$rtf .= $child->format('rtf');
		} 

		$rtf .= '}';
		
		return $rtf;
	}
public function toRtf()
	{
		$rtf = '{';
		
		foreach ($this->children as $child) {
			$rtf .= $child->format('rtf');
		} 

		$rtf .= '}';
		
		return $rtf;
	}
public function toRtf ( ) { $ rtf = '{' ; foreach ( $ this -> children as $ child ) { $ rtf .= $ child -> format ( 'rtf' ) ; } $ rtf .= '}' ; return $ rtf ; }
Returns the group as an rtf string

@return  string
@since  0.1.0
Returns the group as an rtf string