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Support for sealing classes and generic functions have been implemented. Please note that this interface is subject to change.
Seal name
with respect to the given specifiers; name
can be the name of a class or generic-function.
Supported specifiers are :subclasses
for classes,
which prevents changing subclasses of a class, and :methods
which prevents changing the methods of a generic function.
Sealing violations signal an error of type pcl:sealed-error
.
Remove seals from name-or-object
.