/**
 * Encode/decode Terraform DynamicValue fields.
 *
 * Terraform always sends state as msgpack; we always respond with msgpack.
 * The JSON field in DynamicValue is a fallback we also handle on read.
 *
 * Terraform's msgpack encoding of "unknown" is the extension type 0 with
 * a single zero byte (msgpack ext8 with type=0, data=0x00).
 */
import type { DynamicValue } from "../gen/tfplugin6.js";
/** Decode a DynamicValue into a plain JS object (or null for null/empty). */
export declare function readDynamicValue(dv: DynamicValue): Record<string, unknown> | null;
/** Encode a plain JS object (or null) into a DynamicValue using msgpack. */
export declare function toDynamicValue(value: Record<string, unknown> | null): DynamicValue;
/** Convert SDK DiagnosticItem[] to proto Diagnostic[] */
import type { DiagnosticItem } from "./interfaces.js";
import type { Diagnostic } from "../gen/tfplugin6.js";
export declare function diagsToPb(items: DiagnosticItem[]): Diagnostic[];
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