如何使用python在一个json文件中写入前7个实体，然后在第二个文件中写入下一个7个实体，直到最后

import json

entities = ["实体1", "实体2", "实体3", "实体4", "实体5", "实体6", "实体7", "实体8", "实体9", "实体10", "实体11", "实体12", "实体13", "实体14", "实体15", "实体16", "实体17", "实体18", "实体19", "实体20", ...]

chunk_size = 7
entity_chunks = [entities[i:i+chunk_size] for i in range(0, len(entities), chunk_size)]

for i, chunk in enumerate(entity_chunks):
    filename = f"file{i+1}.json"
    with open(filename, "w") as file:
        json.dump(chunk, file)