What is the role and purpose of source set in a Kotlin Multiplatform project?

In Kotlin Multiplatform, a source set is a logical group of source files that are combined based on platforms or common purpose. They allow separating code into common parts (commonMain) and platform-specific parts (e.g., androidMain, iosMain).

Role of source set:

• Organize code by platforms and common code.
• Enable code reuse across different platforms.
• Simplify dependency management for each part.

Example structure of source set:

sourceSets {
    val commonMain by getting {
        dependencies {
            // common dependencies
        }
    }
    val androidMain by getting {
        dependencies {
            // dependencies for Android
        }
    }
    val iosMain by getting {
        dependencies {
            // dependencies for iOS
        }
    }
}

Thus, source sets help organize and separate code in a multiplatform project.