CREATE TRIGGER .... EXECUTE FUNCTION syntax not supported

[seveibar]

In Postgres 13, you can say EXECUTE FUNCTION instead of EXECUTE PROCEDURE in CREATE TRIGGER. The two keywords are equivalent

https://www.postgresql.org/docs/13/sql-createtrigger.html
In the syntax of CREATE TRIGGER, the keywords FUNCTION and PROCEDURE are equivalent, but the referenced function must in any case be a function, not a procedure. The use of the keyword PROCEDURE here is historical and deprecated.

However this currently throws, e.g.

CREATE TRIGGER tree_change_last_modified_trigger BEFORE UPDATE ON public.tree FOR EACH ROW EXECUTE FUNCTION public.change_last_modified()
{
  error: Error: syntax error at or near "FUNCTION"
      at Object.parse (/home/seve/workspace/os/worktree/node_modules/pg-query-native/index.js:12:17)
      at Object.<anonymous> (/home/seve/workspace/os/worktree/db/breakdown-structuresql.js:12:24)
      at Module._compile (internal/modules/cjs/loader.js:1068:30)
      at Object.Module._extensions..js (internal/modules/cjs/loader.js:1097:10)
      at Module.load (internal/modules/cjs/loader.js:933:32)
      at Function.Module._load (internal/modules/cjs/loader.js:774:14)
      at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:72:12)
      at internal/main/run_main_module.js:17:47 {
    fileName: 'scan.l',
    lineNumber: 1116,
    cursorPosition: 107,
    functionName: 'scanner_yyerror',
    context: null
  },
  query: []
}