import { QueryOptions } from '@apollo/client/core';
import BigNumber from 'bignumber.js';
/**
 * @hidden
 *
 * Get the latest processed block number
 */
export declare function latestBlockQuery(): QueryOptions;
/**
 * @hidden
 *
 * Middleware V2 heartbeat
 */
export declare function heartbeatQuery(): QueryOptions;
/**
 * @hidden
 *
 * Get details about the SubQuery indexer
 */
export declare function metadataQuery(): QueryOptions;
/**
 * @hidden
 *
 * Get details about the latest Subquery version
 */
export declare function latestSqVersionQuery(): QueryOptions;
/**
 * Create args and filters to be supplied to GQL query
 *
 * @param filters - filters to be applied
 * @param typeMap - Map defining the types corresponding to each attribute. All missing attributes whose types are not defined are considered to be `String`
 *
 * @hidden
 */
export declare function createArgsAndFilters(filters: Record<string, unknown>, typeMap: Record<string, string>): {
    args: string;
    filter: string;
};
/**
 * Create args and filters to be supplied to GQL query
 *
 * @param size - size of the page
 * @param start - offset of the page
 *
 * @hidden
 */
export declare function getSizeAndOffset(size?: BigNumber, start?: BigNumber): {
    size: number;
    start: number;
};
/**
 * Remove undefined values from the variables object
 *
 * @param variables - variables to be supplied to GQL query
 *
 * @hidden
 */
export declare function removeUndefinedValues(variables: Record<string | number | symbol, unknown>): Record<string | number | symbol, unknown>;
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