Azp is an id_token parameter which represents the Authorized party the party to which the id_token was issued.

If Azp is present, it MUST contain the OAuth 2.0 Client_id of this party. This Claim is only needed when the id_token has a single audience value and that audience is different than the authorized party.

It MAY be included even when the authorized party is the same as the sole audience.

Azp value is a case-sensitive string containing a String or URI value.

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