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Verify whether the certificate of *connection* is valid for *hostname*.
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to.
:raises service_identity.VerificationError: If *connection* does not
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:raises service_identity.VerificationError: If *connection* does not
provide a certificate that is valid for *ip_address*.
:raises service_identity.CertificateError: If the certificate chain of
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:returns: ``None``
.. versionadded:: 18.1.0
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Extract all valid IDs from a certificate for service verification.
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