code: def make_fileitem_sizeinbytes(filesize, condition='is', negate=False):
      
      document = 'FileItem'
      search = 'FileItem/SizeInBytes'
      content_type = 'int'
      content = filesize
      ii_node = ioc_api.make_indicatoritem_node(condition, document, search, content_type, content,
                                                negate=negate)
      return ii_node
docs: Create a node for FileItem/SizeInBytes
      
      :return: A IndicatorItem represented as an Element node