class_docstr: Bananas dataset.
  
  An artificial dataset where instances belongs to several clusters with a banana shape.
  There are two attributes that correspond to the x and y axis, respectively.
  
  References
  ----------
  [^1]: [OpenML page](https://www.openml.org/d/1460)
code: def __iter__(self):
      return stream.iter_libsvm(
          self.path, target_type=lambda x: x == "1"
      )
  
imports: from __future__ import annotations
  from river import stream
  from .None import base
label_desc: Use image node_id 2 for calling the Bananas obj's underlying member method code with example usage: obj.__iter__() and returns: stream