class_docstr: Context manager for making an algorithm instance available to catalyst API
  functions within a scoped block.
code: def __init__(self, algo_instance):
      self.algo_instance = algo_instance
  
file_path: catalyst/catalyst/utils/api_support.py
imports: from functools import wraps
  import catalyst.api
  from catalyst.utils.algo_instance import get_algo_instance, set_algo_instance
label_desc: Use image node_id 1 to create a new ZiplineAPI object from inherited base classes: object with example: obj = ZiplineAPI(algo_instance)