📄 sec-module-header.html
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>This section is optional, but if included takes the
following form:</P
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>{
<Haskell module header>
}</PRE
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>The Haskell module header contains the module name,
exports, and imports. No other code is allowed in the
header---this is because <SPAN
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> may need to include
its own <TT
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>import</TT
> statements directly after the user
defined header.</P
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