export declare const FORWARD_HEADER_ALLOWLIST: readonly ["openai-beta", "openai-organization", "openai-project", "or_app_name", "or_site_url", "x-openrouter-categories", "x-openrouter-title", "x-title", "anthropic-beta", "anthropic-version", "x-claude-code-session-id", "x-amzn-bedrock-guardrailidentifier", "x-amzn-bedrock-guardrailversion", "x-amzn-bedrock-performanceconfig-latency", "x-amzn-bedrock-trace", "x-goog-api-client", "x-vertex-ai-endpoint-id", "x-vertex-ai-llm-request-type", "x-vertex-ai-llm-shared-request-type", "x-kilo-session", "x-kilocode-taskid", "x-kilocode-editorname", "x-kilocode-feature", "x-kilocode-machineid", "x-kilocode-organizationid", "x-kilocode-projectid", "x-kilocode-tester", "agent-session-id", "x-client", "x-client-name", "x-client-type", "x-client-version", "x-platform", "x-platform-version", "x-task-id", "x-stainless-arch", "x-stainless-lang", "x-stainless-os", "x-stainless-package-version", "x-stainless-runtime", "x-stainless-runtime-version"];
export declare const resolveOrCreateRequestId: (request: Request) => string;
export declare const prepareForwardHeaders: (request: Request, allowlist?: readonly string[]) => Record<string, string>;