promoteEphemeralBranch()

// Promote in place (same branch name)
const result = await repo.promoteEphemeralBranch({
  baseBranch: 'preview/pr-123',
});
console.log(result.targetBranch); // 'preview/pr-123'

// Or promote to a new name
const renamed = await repo.promoteEphemeralBranch({
  baseBranch: 'preview/pr-123',
  targetBranch: 'feature/awesome-change',
});
console.log(renamed.targetBranch); // 'feature/awesome-change'

# Promote in place (same branch name)
result = await repo.promote_ephemeral_branch(base_branch="preview/pr-123")
print(result["target_branch"])  # "preview/pr-123"

# Or promote to a new name
result = await repo.promote_ephemeral_branch(
    base_branch="preview/pr-123",
    target_branch="feature/awesome-change",
)
print(result["target_branch"])  # "feature/awesome-change"

// Promote in place (same branch name)
result, err := repo.PromoteEphemeralBranch(context.Background(), storage.PromoteEphemeralBranchOptions{
	BaseBranch: "preview/pr-123",
})
fmt.Println(result.TargetBranch)

// Or promote to a new name
renamed, err := repo.PromoteEphemeralBranch(context.Background(), storage.PromoteEphemeralBranchOptions{
	BaseBranch:   "preview/pr-123",
	TargetBranch: "feature/awesome-change",
})
fmt.Println(renamed.TargetBranch)