docstr: Validates the given engine id against the supported engines by Stability
  
  Args:
      engine_id: The engine id to check
  
  Returns:
      True if valid engine else False
docstr_tok: ["Validates","the","given","engine","id","against","the","supported","engines","by","Stability","Args",":","engine_id",":","The","engine","id","to","check","Returns",":","True","if","valid","engine","else","False"]
code: def _is_valid_engine(self, engine_id):
      """Validates the given engine id against the supported engines by Stability
  
      Args:
          engine_id: The engine id to check
  
      Returns:
          True if valid engine else False
      """
      return engine_id in self.available_engines
  
file_path: mindsdb/mindsdb/integrations/handlers/stabilityai_handler/stabilityai.py
imports: from stability_sdk import client
  from stability_sdk.client import generation
  from PIL import Image
  import io
  import requests
label_desc: Use image node_id 5 for calling the StabilityAPIClient obj's underlying member method code with example usage: obj._is_valid_engine(engine_id) and returns: unknown