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new java.io.File(file_path).isFile

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import scala.collection.mutable.ListBuffer  
  def listSplit[T](collection:Seq[T],seperator:T):Seq[Seq[T]]= {
    val name = ListBuffer(ListBuffer[T]())
    collection foreach {e =>
      if(e == seperator){
        name += ListBuffer[T]()
      } else {
        name.last += e
      }
    }
    name.map(_.toSeq).toSeq
  }