code: def tai_jd(self, jd):
          
          tai = _to_array(jd)
          t = Time(self, tai + tt_minus_tai)
          t.tai = tai
          return t
docs: Build a `Time` from a TAI Julian date.
  
          Supply the International Atomic Time (TAI) as a Julian date:
  
          >>> t = ts.tai_jd(2456675.56640625)
          >>> t.tai
          2456675.56640625
          >>> t.tai_calendar()
          (2014, 1, 18, 1, 35, 37.5)