[amarcozzi]

Closes #241

Stacked on #240, which is stacked on #239. GitHub retargets it when those merge.

Grid.resample(method_overrides={...}) crashed in the client with AttributeError: 'dict' object has no attribute 'to_dict', because the generated CreateResampleRequest only serializes a CreateResampleRequestMethodOverrides instance.

Changes

• _build_method_overrides (new, private), used by resample:

  • None sends nothing
  • a CreateResampleRequestMethodOverrides instance is passed through unchanged
  • a mapping of band key → method has each method checked as a ResamplingMethod, then is converted with CreateResampleRequestMethodOverrides.from_dict
  • anything else raises ValueError

  A bad method raises ValueError before any request, and the message names the band. This matches the other mapping-or-model builders: _build_chm_spike_filter, _build_boundary_scatter, _build_crown_segmentation.

• Docstring: method_overrides is documented as Mapping[str, str], with an example and a Raises entry.

• Tests (tests/v2/test_grids.py, TestResample):

  • the request body for a dict
  • the model instance passed through
  • invalid values raise before a request is sent
  • a live resample with {"aspect": "nearest"} that checks the stored source.method_overrides

Compatibility

Not breaking: an existing CreateResampleRequestMethodOverrides argument still works.

Verification

• pytest tests/v2/test_grids.py -k TestResample against prod: 21 passed. The live test checks that prod stores the overrides; it doesn't run the resample job.