import type { ModelProperty, Operation } from "@typespec/compiler";
import type { unsafe_Mutator as Mutator } from "@typespec/compiler/experimental";
import { type Typekit } from "@typespec/compiler/typekit";
/**
 * Prepares operation for client representation. This includes adding an options bag for optional parameters.
 * @param operation operation to be prepared
 * @returns the prepared operation
 */
export declare function prepareOperation($: Typekit, operation: Operation): Operation;
export declare const anonymousMutator: Mutator;
/**
 * Mutates the operation so that the parameters model is split into required and optional parameters.
 */
export declare const httpParamsMutator: Mutator;
export declare function isConstantHeader($: Typekit, modelProperty: ModelProperty): boolean;
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