CQL::ProxNode - represents a PROX node in a CQL parse tree

       CQL::ProxNode - represents a PROX node in a CQL parse tree

       Creates a new, incomplete, proximity node with the specified left-hand side.  No right-hand side is
       specified at this stage: that must be specified later, using the addSecondSubterm() method.  (That may
       seem odd, but it's just easier to write the parser that way.)

       Proximity parameters may be added at any time, before or after the right-hand-side sub-tree is added.

           my $prox = CQL::ProxNode->new( $term );

   addSecondTerm()addModifier()getModifiers()op()opXCQL()
perl v5.36.0                                       2022-12-11                                 CQL::ProxNode(3pm)

           use CQL::ProxNode;
           my $node = CQL::ProxNode->new( left => $left );
           $node->addSecondTerm( $right );