def timespan_from_string(value)
      timespan = DPLA::MAP::TimeSpan.new
      timespan.providedLabel = value
      timespan
    end
def timespan_from_string(value)
      timespan = DPLA::MAP::TimeSpan.new
      timespan.providedLabel = value
      timespan
    end
Converts a string to a `DPLA::MAP::TimeSpan` with the string as
 `providedLabel`.

 @param [String] a string value containing a date, time, or timespan

 @return [DPLA::MAP::TimeSpan] a new, empty timespan with `providedLabel`