ReadonlyapiFully-qualified IMF SDMX base URL (no trailing slash)
ReadonlytimeoutPer-request timeout in milliseconds
ReadonlyfetchFetch implementation (allows injection in tests)
Optionalinit: RequestInitOptionalinit: RequestInitReadonlyfetchOptional fetch-proxy gateway URL (bypasses AWF Squid proxy)
ReadonlyfetchOptional API key for the fetch-proxy gateway
ReadonlyimfConfigured Azure-APIM subscription keys (primary / secondary)
Adapter passed by IMFMCPClient to HTTP transport helpers. Bundles the fields required for authenticated IMF SDMX 3.0 requests without requiring helpers to reference the client class directly.