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In Go, channels are used to organize safe data exchange between goroutines, which simplifies synchronization and communication.

Example of using a channel to transmit data between two goroutines:

package main

import (
    "fmt"
    "time"
)

func worker(ch chan string) {
    msg := <-ch // receive message from channel
    fmt.Println("Received message:", msg)
}

func main() {
    ch := make(chan string)
    go worker(ch)
    ch <- "Hello from main!" // send message to channel
    time.Sleep(time.Second) // wait for goroutine to finish
}

Channels help prevent data races and make code more readable and maintainable when working with concurrency.