import type { DesiredStateGraph, SecretSource, SerializedValue } from "./types.js";
export declare const secretRef: (value: SerializedValue | undefined) => {
    readonly source: SecretSource;
    readonly key: string;
} | undefined;
export interface SecretUsage {
    readonly key: string;
    readonly source: SecretSource;
    readonly requiredBy: readonly {
        readonly id: string;
        readonly type: string;
    }[];
}
export declare const collectSecretUsage: (graph: DesiredStateGraph) => SecretUsage[];
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