import { Task, Operation } from '@effection/core';
export * from './error';
export { formatError } from './format-error-node';
/**
 * Runs the given operation in a task and returns that task. `main` functions
 * as an entry point to programs written in Effection. That means that your
 * program should only call `main` once, and everything the program does is
 * handled from within `main`. Unlike `run`, `main` automatically prints errors
 * that occurred to the console.
 *
 * Using {@link MainError}, the `main` operation can be aborted without causing
 * a stack trace to be printed to the console.
 *
 * The behaviour of `main` is slightly different depending on the environment it
 * is running in.
 *
 * ### Node
 *
 * When running within node, any error which reaches `main` causes the entire
 * process to exit with an exit code of `1`.
 *
 * Additionally, handlers for `SIGINT` and `SIGTERM` are attached to the
 * process, so that sending an exit signal to the process causes the main task
 * to become halted. This means that hitting CTRL-C on an Effection program
 * using `main` will cause an orderly shutdown and run all finally blocks and
 * ensure operations.
 *
 * ### Browser
 *
 * When running in a browser, The `main` operation gets shut down on the
 * `unload` event.
 */
export declare function main<T>(operation: Operation<T>): Task<T>;
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