Editing Module:Template wrapper/doc (section)

===_alias-map===
{{para|_alias-map}} takes a comma-separated list of wrapper-template parameters that are to be treated as aliases of specified working template canonical parameters.  Each mapping element of the list has the form:
:<code>&lt;{{var|from}}>:&lt;{{var|to}}></code> – where: <code>&lt;{{var|from}}></code> is a wrapper parameter name and <code>&lt;{{var|to}}></code> is a canonical parameter name
In this example, it may be preferable for a wrapper template to use {{para|assessor}} which may be unknown to the working template but the working template may have an equivalent {{para|author}} so in the <code><nowiki>{{#invoke:}}</nowiki></code> we would write:
:{{para|_alias-map|assessor:author}}
Positional parameters may also be mapped to canonical parameters:
:{{para|_alias-map|1:author, 2:title, 3:language}}
Enumerated wrapper parameters may be mapped to enumerated canonical parameters using the <code>#</code> enumerator specifier:
:{{para|_alias-map|assessor#:author#}}
Given the above example, {{para|assessor2}} will map to {{para|author2}}; also, {{para|assessor}} and {{para|assessor1}} will map to {{para|author1}}

Multiple wrapper parameters can map to a single canonical parameter:
:{{para|_alias-map|1:author, assessor:author}}
Wrapper parameters listed in {{para|alias-map}} are not passed to the working template.  Mapping positional parameters when {{para|_include-positional|yes}} may give undesirable results.  {{para|_alias-map|1:author}} and {{para|_include-positional|yes}} will cause all other positional parameters to be passed to the working template as is: wrapper template <code><nowiki>{{{2}}}</nowiki></code> becomes working template <code><nowiki>{{{2}}}</nowiki></code>, etc; working template will not get <code><nowiki>{{{1}}}</nowiki></code> though it will get {{para|author}}.