Catmandu::Fix::retain_field

delete everything from a field except

Provided by: libcatmandu-perl (Version: 1.1000-2)
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DEPRECIATION NOTICE

This fix is deprecated, Please use Catmandu::Fix::retain instead.

SYNOPSIS

   # Delete every key from foo except bar
   retain_field(foo.bar)

SEE ALSO

Catmandu::Fix