/**
 * FHIR JSON represents primitive element metadata in underscore sibling
 * properties (for example `value` + `_value`). A primitive element can be
 * clinically present through the sidecar alone when it carries an extension
 * such as data-absent-reason.
 */
export declare function isResolvedPrimitiveSidecarValue(value: unknown): boolean;
export declare function getResolvedPrimitiveSidecarType(value: unknown): string | undefined;
export declare function getPrimitiveSidecar(container: any, key: string): any | undefined;
export declare function resolveFhirSegmentValue(container: any, segment: string): any;
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