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object ZipManager {
  fun zip(files: List<String>, outputStream: OutputStream): Boolean = try {
    ZipOutputStream(BufferedOutputStream(outputStream)).use { stream ->
      for (file in files) {
        BufferedInputStream(FileInputStream(File(file))).use { origin ->
          stream.putNextEntry(ZipEntry(file.substring(file.lastIndexOf("/") + 1)))
          origin.copyTo(stream)
        }
      }
    }

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class CircleView @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0) : View(context, attrs, defStyleAttr) {
  private val paint by lazy { Paint(Paint.ANTI_ALIAS_FLAG).apply { style = Paint.Style.FILL } }

  @ColorInt
  var color: Int = Color.TRANSPARENT
    set(value) {
      field = value
      invalidate()
    }

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class TriangleView @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0) : View(context, attrs, defStyleAttr) {
  private val paint by lazy { Paint(Paint.ANTI_ALIAS_FLAG).apply { style = Paint.Style.FILL } }
  private val path: Path = Path()

  @ColorInt
  var color: Int = Color.TRANSPARENT
    set(value) {
      field = value
      invalidate()
    }

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object TimeAgo {
  fun toRelative(millis: Long, spans: List<Span>): Map<Span, Long> {
    var millisMutable = millis
    return spans.sortedBy(Span::order).associateWith { span ->
      val timeDelta: Long = millisMutable / span.millis
      if (timeDelta.isGreaterThanZero()) millisMutable -= span.millis * timeDelta
      timeDelta
    }
  }

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class FixedColumnsHorizontalGridLayoutManager(context: Context?, spanCountVertical: Int, private var columns: Int, orientation: Int, reverseLayout: Boolean) :
  GridLayoutManager(context, spanCountVertical, orientation, reverseLayout) {

  private val safeWidth: Int
    get() = width - paddingRight - paddingLeft

  override fun generateDefaultLayoutParams(): RecyclerView.LayoutParams = spanLayoutSize(super.generateDefaultLayoutParams())
  override fun generateLayoutParams(context: Context, attrs: AttributeSet): RecyclerView.LayoutParams = spanLayoutSize(super.generateLayoutParams(context, attrs))
  override fun generateLayoutParams(layoutParams: ViewGroup.LayoutParams): RecyclerView.LayoutParams = spanLayoutSize(super.generateLayoutParams(layoutParams))

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private val data = submodule {
  /* ... */
}
private val usecases = submodule {
  /* ... */
}

val locator = locator {
  single<Application> { App.get() }
  single<Context> { get<Application>().applicationContext }

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interface Action

typealias Middleware<STATE> = (STATE, Action, Dispatcher, NextMiddleware<STATE>) -> Action
typealias NextMiddleware<STATE> = (STATE, Action, Dispatcher) -> Action

typealias Reducer<STATE> = (STATE, Action) -> STATE

interface State

typealias Binder<STATE> = (STATE, STATE) -> Boolean

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class WindowInsetsFrameLayout @JvmOverloads constructor(
  context: Context,
  attrs: AttributeSet? = null,
  defStyleAttr: Int = 0
) : FrameLayout(context, attrs, defStyleAttr) {

  init {
    setOnHierarchyChangeListener(object : OnHierarchyChangeListener {
      override fun onChildViewAdded(
        parent: View,

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class LineView @JvmOverloads constructor(
  context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0
) : View(context, attrs, defStyleAttr) {

  companion object {
    const val ORIENTATION_VERTICAL = 0
    const val ORIENTATION_HORIZONTAL = 1

    private const val DEFAULT_ORIENTATION = ORIENTATION_HORIZONTAL

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@DslMarker
annotation class HorizontalSelectorGroups

interface HorizontalSelectorHelper {
  fun groups(block: GroupsBuilder.() -> Unit): List<Pair<Header, List<Item>>> = GroupsBuilder().apply(block).build()

  @HorizontalSelectorGroups
  class GroupsBuilder {
    private val groups = mutableListOf<Group>()