Scala mode

       *                `f` to each element of the outer $coll that satisfies predicate `p` and concatenating the results.
 
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  /*                     __                                               *\
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  **     ________ ___   / /  ___     Scala API                            **
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  **    / __/ __// _ | / /  / _ |    (c) 2003-2011, LAMP/EPFL             **
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  **  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
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  ** /____/\___/_/ |_/____/_/ | |                                         **
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  **                          |/                                          **
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  \*                                                                      */
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  package scala.collection
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  import generic._
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  import mutable.{ Builder, ListBuffer }
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  import annotation.{tailrec, migration, bridge}
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  import annotation.unchecked.{ uncheckedVariance => uV }
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  import parallel.ParIterable
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  /** A template trait for traversable collections of type `Traversable[A]`.
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   *  
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   *  $traversableInfo
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   *  @define mutability
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   *  @define traversableInfo
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   *  This is a base trait of all kinds of $mutability Scala collections. It
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   *  implements the behavior common to all collections, in terms of a method
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   *  `foreach` with signature:
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   * {{{