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=head1 NAME

ur define - define namespaces, data sources and classes



=head1 VERSION

This document describes ur define version 0.29.

=head1 SUB-COMMANDS

 namespace  NSNAME               create a new namespace tree and top-level module 
 db         URI NAME             add a data source to the current namespace       
 class      --extends=? [NAMES]  Add one or more classes to the current namespace 




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