code: function() {
  			if ( !this._.inPre && this._.output.length > 0 )
  				this._.output.push( this.lineBreakChars );
  			this._.indent = 1;
  		}
docs: Writes a line break. It uses the {@link #lineBreakChars} property for it.
  
  // Writes '\n' (e.g.).
  writer.lineBreak();