input: from typing import List
  
  
  def crud_operations(model: str, operations: List[str]) -> List[str]:
      """ This function performs CRUD (Create, Read, Update, Delete) operations on a given model.
      The model is a string representing the name of the model, and operations is a list of strings
      representing the operations to be performed. The function returns a list of strings
      representing the results of the operations.
      
      Example:
      >>> crud_operations('Model', ['Create', 'Read', 'Update', 'Delete'])
      ['Model created', ['Model_1', 'Model_2'], 'Model updated', 'Model deleted']
      """
output:     results = []
      for op in operations:
          if op == 'Create':
              results.append(f"{model} created")
          elif op == 'Read':
              results.append([f"{model}_1", f"{model}_2"])
          elif op == 'Update':
              results.append(f"{model} updated")
          elif op == 'Delete':
              results.append(f"{model} deleted")
      return results