code: def transform(self, raw_documents):
      """
      Remove number in each document
  
      Parameters
      ----------
      raw_documents : iterable
          An iterable which yields either str, unicode
  
      Returns
      -------
      X : iterable
          cleaned documents
      """
      return [self._remove(document) for document in raw_documents]
  
imports: import sys
label_desc: Use image node_id 3 for calling the NumberRemover obj's underlying member method code with example usage: obj.transform(raw_documents) and returns: unknown