fix(stainless): rename simulate.return → simulate.refund to avoid Kotlin keyword

[pengying]

Summary

Renames the Stainless method sandbox.cards.simulate.return → sandbox.cards.simulate.refund to avoid the Kotlin reserved keyword return.

Why

After #518, Stainless codegen emits a warning:

Encountered name return that conflicts with a Kotlin keyword. Renamed to return_.

That gives consumers awkward call sites like grid.sandbox.cards.simulate.return_(...) in Kotlin. The endpoint creates a CardRefund (per the POST /sandbox/cards/{id}/simulate/return description: "Simulate a merchant-initiated RETURN against an existing settled card transaction... Creates a CardRefund..."), so refund is both semantically accurate and reads cleanly across all SDK targets.

Changes

• .stainless/stainless.yml: rename the method key in sandbox.subresources.cards.subresources.simulate.methods from return → refund. The underlying OpenAPI path is unchanged (/sandbox/cards/{id}/simulate/return); only the SDK identifier changes.

SDK call site impact

Language	Before	After
Kotlin	simulate.return_(...)	simulate.refund(...)
TypeScript	simulate.return(...)	simulate.refund(...)
Python	simulate.return_(...) (reserved)	simulate.refund(...)

Method has not shipped in any GA SDK yet, so no compatibility shim is needed.

Test plan

• Stainless regen succeeds without the keyword-conflict warning
• Kotlin SDK compiles

[vercel]

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Project	Deployment	Actions	Updated (UTC)
grid-flow-builder	Ready	Preview, Comment	May 28, 2026 5:15am

[pengying]

• fix(spectral): catch oneOf without discriminator at all schema depths #521
• fix(stainless): rename simulate.return → simulate.refund to avoid Kotlin keyword #520 👈 (View in Graphite)
• main

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[greptile-apps]

Greptile Summary

This PR renames the Stainless SDK method alias simulate.return to simulate.refund to avoid a conflict with the return reserved keyword in Kotlin. The underlying HTTP endpoint path (/sandbox/cards/{id}/simulate/return) is unchanged — only the generated SDK method name is affected.

• The rename is consistent with the existing card_refund_summary model name already present in the same config block, making the naming cohesive across the resource.
• No other files are affected; the change is isolated to a single line in .stainless/stainless.yml.

Confidence Score: 5/5

Safe to merge — one-line rename in the Stainless config with no changes to the HTTP endpoint or any application logic.

The change is a single alias rename in stainless.yml. The HTTP path is preserved, the new name aligns with the existing card_refund_summary model, and there is no risk of breaking existing API consumers — only generated SDK method names change.

No files require special attention.

Important Files Changed

Filename	Overview
.stainless/stainless.yml	Renames the simulate.return method alias to simulate.refund in the Stainless SDK config while keeping the underlying HTTP path unchanged; consistent with the existing card_refund_summary model name.

Sequence Diagram

sequenceDiagram
    participant KotlinSDK as Kotlin SDK Client
    participant StainlessGen as Stainless SDK Generator
    participant API as Grid API

    Note over StainlessGen: stainless.yml: refund → /simulate/return
    KotlinSDK->>StainlessGen: sandbox.cards.simulate.refund(id)
    StainlessGen->>API: "POST /sandbox/cards/{id}/simulate/return"
    API-->>StainlessGen: 200 OK (CardRefundSummary)
    StainlessGen-->>KotlinSDK: CardRefundSummary

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