/** Remove trailing slashes so hook routes contain one separator per segment. */
export declare function normalizeWorkflowApiBase(apiBase: string): string;
/** Encode an identifier that must remain one WHATWG URL path segment. */
export declare function encodeWorkflowPathSegment(value: string, label: string): string;
/** Stabilize semantically equal inline header objects across hook renders. */
export declare function useStableWorkflowHeaders(headers?: HeadersInit): Headers;
/** Add the double-submit token to browser workflow mutations in every environment. */
export declare function workflowMutationHeaders(requestUrl: string | URL, init?: HeadersInit): Headers;
/** Replace any caller media type with the JSON type used by workflow mutations. */
export declare function workflowJsonMutationHeaders(requestUrl: string | URL, init?: HeadersInit): Headers;
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