import type { Property } from "@autorest/codemodel";
import { Parameter } from "@autorest/codemodel";
import type { SdkCookieParameter, SdkHeaderParameter, SdkHttpOperation, SdkLroServiceMetadata, SdkModelPropertyType, SdkPathParameter, SdkQueryParameter, SdkServiceResponseHeader } from "@azure-tools/typespec-client-generator-core";
import type { Program, Type, Union } from "@typespec/compiler";
import type { HttpOperation } from "@typespec/http";
import type { Client as CodeModelClient } from "./common/client.js";
import { ServiceVersion } from "./common/client.js";
import type { CodeModel } from "./common/code-model.js";
import type { Operation as CodeModelOperation } from "./common/operation.js";
export declare const SPECIAL_HEADER_NAMES: Set<string>;
export declare const ORIGIN_API_VERSION = "modelerfour:synthesized/api-version";
export declare function isContentTypeHeader(header: SdkPathParameter | SdkQueryParameter | SdkHeaderParameter | SdkCookieParameter | SdkServiceResponseHeader): boolean;
export declare function isKnownContentType(contentTypes: string[]): boolean;
export declare function operationIsJsonMergePatch(op: SdkHttpOperation): boolean;
export declare function operationIsMultipart(op: SdkHttpOperation): boolean;
export declare function operationIsMultipleContentTypes(op: SdkHttpOperation): boolean;
export declare function operationRefersUnion(program: Program, op: HttpOperation, cache: Map<Type, Union | null | undefined>): Union | null;
export declare function getServiceVersion(client: CodeModelClient | CodeModel): ServiceVersion;
export declare function isLroNewPollingStrategy(operation: SdkHttpOperation, lroMetadata: SdkLroServiceMetadata): boolean;
export declare function cloneOperationParameter(parameter: Parameter): Parameter;
/**
 * Constructs a list of property path (json path) from the response schema based on the provided property segments.
 *
 * @param op the code model operation
 * @param propertySegments the segments of the property path (json path) to find in the response schema
 * @returns the list of property path (json path)
 */
export declare function findResponsePropertySegments(op: CodeModelOperation, propertySegments: (SdkServiceResponseHeader | SdkModelPropertyType)[] | undefined): Property[] | undefined;
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