class_docstr: Read json file's contents into the datastore.
docstr: Initialize an instance.
  
  :param str store_key: key of input data to be stored in the datastore
  :param str file_path: the file path to read the data from
docstr_tok: ["Initialize","an","instance",".",":","param","str","store_key",":","key","of","input","data","to","be","stored","in","the","datastore",":","param","str","file_path",":","the","file","path","to","read","the","data","from"]
code: def __init__(self, file_path: str | Path, store_key: str) -> None:
      """Initialize an instance.
  
      :param str store_key: key of input data to be stored in the datastore
      :param str file_path: the file path to read the data from
      """
      super().__init__(store_key, file_path, apply_func=json.loads)
  
imports: from __future__ import annotations
  import json
  from pathlib import Path
  from popmon.io import FileReader
label_desc: Use image node_id 1 to create a new JsonReader object from inherited base classes: FileReader with example: obj = JsonReader(file_path, store_key)