docs: def get_t(self, var, coords=None):
          """
          Get the time coordinate of a variable
  
          This method searches for the time coordinate in the :attr:`ds`. It
          first checks whether there is one dimension that holds an ``'axis'``
          attribute with 'T', otherwise it looks whether there is an intersection
          between the :attr:`t` attribute and the variables dimensions, otherwise
          it returns the coordinate corresponding to the first dimension of `var`
  
          Possible types
          --------------
          var: xarray.Variable
              The variable to get the time coordinate for
          coords: dict
              Coordinates to use. If None, the coordinates of the dataset in the
              :attr:`ds` attribute are used.
  
          Returns
          -------
          xarray.Coordinate or None
              The time coordinate or None if no time coordinate could be found"""
          coords = coords or self.ds.coords
          coord = self.get_variable_by_axis(var, 't', coords)
          if coord is not None:
              return coord
          dimlist = list(self.t.intersection(var.dims).intersection(coords))
          if dimlist:
              if len(dimlist) > 1:
                  warn("Found multiple matches for time coordinate in the "
                       "variable: %s. I use %s" % (
                           ', '.join(dimlist), dimlist[0]),
                       PsyPlotRuntimeWarning)
              return coords[dimlist[0]]
          tname = self.get_tname(var)
          if tname is not None:
              return coords.get(tname)
          return None