class_docstr: Solar flare multi-output regression.
  
  References
  ----------
  [^1]: [UCI page](https://archive.ics.uci.edu/ml/datasets/Solar+Flare)
code: def __init__(self):
      super().__init__(
          n_samples=1_066,
          n_features=10,
          n_outputs=3,
          task=base.MO_REG,
          filename="solar-flare.csv.zip",
      )
  
imports: from __future__ import annotations
  from river import stream
  from .None import base
label_desc: Use image node_id 1 to create a new SolarFlare object from inherited base classes: base with example: obj = SolarFlare()