def mappable_to_model rc_file
      rc_file.map! { |l| line_to_tuple(l) }.compact!
      taskrc = Hash[rc_file]
      hash_to_model(taskrc)
    end
def mappable_to_model rc_file
      rc_file.map! { |l| line_to_tuple(l) }.compact!
      taskrc = Hash[rc_file]
      hash_to_model(taskrc)
    end
Converts a .taskrc file path into a Hash that can be converted into a
 TaskrcModel object

 @param rc_file [String,Pathname] a valid pathname to a .taskrc file
 @return [Models::TaskrcModel] the instance variable config
 @api private