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Hey! These docs are for version 1-2, which is no longer officially supported. Click here for the latest version, 2023-10-15!

Checks if one or more emails, phone numbers, or push tokens are in a given segment. No distinction is made between a person not being in a given segment, and not being present in Klaviyo at all. Can check up to a maximum of 100 emails at a time.

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