Stubbing @std/x

I need some help understanding how to use the

stub()

stub()

method with

@std/x

@std/x

libraries.

import * as stdYaml from 'jsr:@std/yaml';

 using _parse = stub(
    stdYaml,
    'parse',
    returnsNext([{ version: '3.8' }]),
  );

import * as stdYaml from 'jsr:@std/yaml';

 using _parse = stub(
    stdYaml,
    'parse',
    returnsNext([{ version: '3.8' }]),
  );

The code above seems to satisfy the linter, but the test obviously fails with the following:

sh 
error: MockError: Cannot stub: non-configurable instance method
    throw new MockError("Cannot stub: non-configurable instance method");

sh 
error: MockError: Cannot stub: non-configurable instance method
    throw new MockError("Cannot stub: non-configurable instance method");