{{模板:ParserFunction}} is used to conveniently link to a ParserFunction, along the lines of {{tl}}. Pf stands for ParserFunction.
Usage
{{ParserFunction
{{ParserFunction
Use |_code=yes to wrap the output in code>>...</code> tags, e.g. {{ParserFunction{{#ifexpr:1+1>1|true|false}}.
See also
Other formatting templates
{{#lsth:Template:Template-linking_templates|Other formatting templates}}