Add raw GET methods for unparsed Kill Bill responses

[tungleduyxyz]

Related : killbill/killbill-admin-ui#611

Summary

• Add Resource.raw_get to fetch endpoints and return the raw response body without model parsing
• Add Subscription.find_raw_by_id as a raw-response counterpart to find_by_id
• Cover both methods with specs verifying body passthrough, default args, error propagation, and that no model instantiation occurs

Test plan

• bundle exec rspec spec/killbill_client/raw_response_spec.rb

[Copilot]

Pull request overview

This pull request adds an API surface to fetch Kill Bill endpoints while returning the raw (unparsed) response body, enabling callers to bypass JSON-to-model parsing when needed.

Changes:

• Add KillBillClient::Model::Resource.raw_get to return response.body directly from KillBillClient::API.get.
• Add KillBillClient::Model::Subscription.find_raw_by_id as a raw-body counterpart to find_by_id.
• Add RSpec coverage validating passthrough behavior, default arguments, and that model parsing is not invoked.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
spec/killbill_client/raw_response_spec.rb	Adds specs for Resource.raw_get and Subscription.find_raw_by_id raw-body behavior and error propagation.
lib/killbill_client/models/subscription.rb	Adds Subscription.find_raw_by_id which delegates to raw_get and returns the raw response body.
lib/killbill_client/models/resource.rb	Adds Resource.raw_get that performs a GET and returns response.body without parsing.

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