Generic copy utility to return a copy of a (datamodel) object
Parameters: | dobj : object
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Returns: | copy_obj: object (same type as input) :
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Examples
>>> import spacepy.datamodel as dm
>>> dat = dm.dmarray([2,3], attrs={'units': 'T'})
>>> dat1 = dm.dmcopy(dat)
>>> dat1.attrs['copy': True]
>>> dat is dat1
False
>>> dat1.attrs
{'copy': True, 'units': 'T'}
>>> dat.attrs
{'units': 'T'}