flat_dump
flat_dump(
     self ,
     dim_tuple = False,
     exclude = None,
 )-> ‘dict’
Flatten the coordinates and dump to dict.
Parameters
| Parameter | Description | 
|---|---|
| dim_tuple | If True, return dimensional tuple instead of range. EG, the output will have {time: (min, max)} rather than {time_min: …, time_max: …,}. This is useful because it can be passed to read, scan, select, etc. | 
| exclude | keys to exclude. | 
