import scala.collection.mutable

import scala.collection.mutable.{HashMap, ArrayBuffer}

import scala.collection.mutable._

import java.util.{Date => JavaDate}

import scala.collection.mutable.{Map => _, _}  // Imports everything except Map

// 6. Chained Imports
import scala.collection.mutable, scala.math.BigInt

// 7. Importing from an Object
import scala.math._

val radius = 5
val area = Pi * radius * radius  // Using Pi from scala.math

package mypackage
import scala.collection.mutable._

package mypackage
import subpackage.MyClass  // Assuming subpackage exists

// 10. Importing Implicit Conversions
import scala.concurrent.ExecutionContext.Implicits.global

import MathUtils.Pi

