def append_lane(lane)
      lane.compact! # remove nil values

      new_lines = "\n\n"
      if self.is_swift_fastfile
        new_lines = "" unless self.fastfile_content.include?("lane() {") # the first lane we don't want new lines
        self.fastfile_content.gsub!("[[LANES]]", "#{new_lines}\t#{lane.join("\n\t")}[[LANES]]")
      else
        new_lines = "" unless self.fastfile_content.include?("lane :") # the first lane we don't want new lines
        self.fastfile_content.gsub!("[[LANES]]", "#{new_lines}  #{lane.join("\n  ")}[[LANES]]")
      end
    end
def append_lane(lane)
      lane.compact! # remove nil values

      new_lines = "\n\n"
      if self.is_swift_fastfile
        new_lines = "" unless self.fastfile_content.include?("lane() {") # the first lane we don't want new lines
        self.fastfile_content.gsub!("[[LANES]]", "#{new_lines}\t#{lane.join("\n\t")}[[LANES]]")
      else
        new_lines = "" unless self.fastfile_content.include?("lane :") # the first lane we don't want new lines
        self.fastfile_content.gsub!("[[LANES]]", "#{new_lines}  #{lane.join("\n  ")}[[LANES]]")
      end
    end
Append a lane to the current Fastfile template we're generating