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Restore headerlet extension(s) as either a primary WCS or as alternate WCSs
This task can restore a WCS solution stored in a headerlet extension or
restore all WCS solutions from all headerlet extensions with the same
distortion model.
Parameters
----------
filename: string or HDUList
Either a filename or PyFITS HDUList object for the input science file
An input filename (str) will be expanded as necessary to interpret
any environmental variables included in the filename.
archive: boolean (default True)
flag indicating if HeaderletHDUs should be created from the
primary and alternate WCSs in fname before restoring all matching
headerlet extensions
force: boolean (default:False)
When the distortion models of the headerlet and the primary do
not match, and archive is False, this flag forces an update of
the primary.
distname: string
distortion model as represented by a DISTNAME keyword
primary: int or string or None
HeaderletHDU to be restored as primary
if int - a fits extension
if string - HDRNAME
if None - use first HeaderletHDU
sciext: string (default: SCI)
EXTNAME value of FITS extensions with WCS keywords
hdrname: string
HDRNAME keyword of HeaderletHDU
hdrext: int or tuple
Headerlet extension number of tuple ('HDRLET',2)
logging: boolean
enable file logging
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