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<p>
Normally functions from other modules are used in a
<em>qualified</em> fashion, meaning the name used to refer the module goes
before function name with a dot between them. For example,
<code>io.println("Hello!")</code>.
</p>
<p>
It is also possible to specify a list of functions to import from a module in
an <em>unqualified</em> fashion, meaning the function name can be used without
the module <em>qualifier</em> (the name and the dot) before it.
</p>
<p>
Generally it is best to use qualified imports, as this makes it clear where
the function is defined, making the code easier to read.
</p>
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