import type { dh } from '@deephaven/jsapi-types';
/** Default timeout for fetching a variable definition */
export declare const FETCH_TIMEOUT = 10000;
/**
 * Fetch the definition for a variable given a connection. Waits for the next
 * field update event and resolves if the variable is found in the created
 * variables.
 * @param connection Connection to get the variable from
 * @param name Name of the definition to fetch
 * @param timeout Timeout for the fetch
 * @returns Promise that resolves to the variable definition if found in the next field update,
 *          or rejects if the variable is not found in that update or if the timeout is exceeded
 */
export declare function fetchVariableDefinition(connection: dh.IdeConnection, name: string, timeout?: number): Promise<dh.ide.VariableDefinition>;
/**
 * Fetch the definition for a variable given a connection. Waits for the next
 * field update event and resolves if a variable matching the predicate is found
 * in the created variables.
 * @param connection Connection to get the variable from
 * @param predicate Predicate function to test each variable definition
 * @param timeout Timeout for the fetch
 * @param errorMessage Optional error message for timeout and not found errors
 * @returns Promise that resolves to the variable definition if found in the next field update,
 *          or rejects if no matching variable is found in that update or if the timeout is exceeded
 */
export declare function fetchVariableDefinitionByPredicate(connection: dh.IdeConnection, predicate: (definition: dh.ide.VariableDefinition) => boolean, timeout?: number, errorMessage?: string): Promise<dh.ide.VariableDefinition>;
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