Template:Data/pair

{{#vardefine:arg1|{{{1}}}}} {{#vardefine:arg2|{{{2}}}}}

<let name="{{#var:arg1}}">{{#var:arg2}}</let>

Test: param 1=[{{{1}}}][{{#var:arg1}}] value=[{{{2}}}][{{#var:arg2}}] stored value=[<get name="{{#var:arg1}}" />]