import { NovuCore } from "../core.js";
import { RequestOptions } from "../lib/sdks.js";
import { ConnectionError, InvalidRequestError, RequestAbortedError, RequestTimeoutError, UnexpectedClientError } from "../models/errors/httpclienterrors.js";
import * as errors from "../models/errors/index.js";
import { NovuError } from "../models/errors/novuerror.js";
import { ResponseValidationError } from "../models/errors/responsevalidationerror.js";
import { SDKValidationError } from "../models/errors/sdkvalidationerror.js";
import * as operations from "../models/operations/index.js";
import { APIPromise } from "../types/async.js";
import { Result } from "../types/fp.js";
/**
 * Retrieve a variable usage
 *
 * @remarks
 * Returns the workflows that reference this environment variable via `{{env.KEY}}` in their step controls. **variableId** is required.
 */
export declare function environmentVariablesUsage(client: NovuCore, variableKey: string, idempotencyKey?: string | undefined, options?: RequestOptions): APIPromise<Result<operations.EnvironmentVariablesControllerGetEnvironmentVariableUsageResponse, errors.ErrorDto | errors.ValidationErrorDto | NovuError | ResponseValidationError | ConnectionError | RequestAbortedError | RequestTimeoutError | InvalidRequestError | UnexpectedClientError | SDKValidationError>>;
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