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Simple, compact and correct param-checking functions

This package is based on the package 'perl-Params-Util' from project 'devel:languages:perl'.

 Params-Util module for perl

  Params::Util provides a basic set of importable functions that makes checking
  parameters a hell of a lot easier While they can be (and are) used in other
  contexts, the main point behind this module is that the functions both Do What
  You Mean, and Do The Right Thing, so they are most useful when you are getting
  params passed into your code from someone and/or somewhere else and you can't
  really trust the quality. 

  Thus, Params::Util is of most use at the edges of your API, where params and
  data are coming in from outside your code.  The functions provided by
  Params::Util check in the most strictly correct manner known, are documented as
  thoroughly as possible so their exact behaviour is clear, and heavily tested so
  make sure they are not fooled by weird data and Really Bad Things. 

  To use, simply load the module providing the functions you want to use as
  arguments (as shown in the SYNOPSIS). 

  To aid in maintainability, Params::Util will never export by default. 

  You must explicitly name the functions you want to export, or use the :ALL
  param to just have it export everything (although this is not recommended if
  you have any _FOO functions yourself with which future additions to
  Params::Util may clash)

  Author:	Adam Kennedy <adamk@cpan.org>

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