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export --
export a function from a package
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This command makes a function defined in a package visible at top-level
(without having to use the package prefix). See the manual entry for
First Example of a Package for an example.
The
export command exports
just a single name; you must call
it separately for each exported function. All calls to
export
must be at the start of the package (i.e. before the first function
definition).
If you do not want to export any names from your package then you
should export the keyword
skip (to avoid a warning that no
export
commands were found).