xr_accessor.py 文件源码

def master_clock_dim(self):
        """Dimension used as master clock for model runs. Returns None
        if no dimension is set as master clock.

        See Also
        --------
        :meth:`Dataset.xsimlab.update_clocks`

        """
        if self._master_clock_dim is not None:
            return self._master_clock_dim
        else:
            for c in self._obj.coords.values():
                if c.attrs.get(self._master_clock_key, False):
                    dim = c.dims[0]
                    self._master_clock_dim = dim
                    return dim
            return None