获取关键词有效日期/Get keyword valid date

[中文]

用途:

• 获取指定关键词在抖音指数中的有效日期范围

参数:

• keyword_list: 关键词列表，多个关键词用逗号分隔，如 "美食,旅游"

返回:

• 各关键词可查询的起止日期

[English]

Purpose:

• Get valid date range for specified keywords in Douyin Index

Parameters:

• keyword_list: Keyword list, comma separated, e.g. "美食,旅游"

Return:

• Queryable start and end dates for each keyword

[示例/Example]

keyword_list = "美食"

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