code: def load_feedback(reader: Reader = None) -> List:
      """Load the implicit feedback between users and items
  
      Parameters
      ----------
      reader: `obj:cornac.data.Reader`, default: None
          Reader object used to read the data.
  
      Returns
      -------
      data: array-like
          Data in the form of a list of tuples (user, item, 1).
  
      """
      fpath = cache(
          url="https://static.preferred.ai/cornac/datasets/citeulike/users.zip",
          relative_path="citeulike/users.dat",
          unzip=True,
      )
      reader = Reader() if reader is None else reader
      return reader.read(fpath, fmt="UI", sep=" ", id_inline=True)
  
imports: from typing import List
  from ..utils import cache
  from ..data import Reader
label_desc: Use image node_id 1 for calling a global function with example usage: load_feedback(reader) and returns: reader