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The WordPress transients API is a caching tool that helps users save the data with an expiry time. This means that the information is automatically deleted once that specified date-time is reached. It helps in minimizing the number of queries that your interface has to process. Using transients can be helpful when the connection between your Instagram profile and website is not working properly. When you want to fetch a saved transient, you will have to use get_transient() in this way:Get_Transient().