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Get the next credential in a ccache.
- Parameters:
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| in_credential_iterator | a credential iterator object. |
| out_credential | on exit, the next credential in the ccache iterated by in_credential_iterator. Must be freed with kim_credential_free(). If there are no more credentials this argument will be set to NULL. |
- Returns:
- On success, KIM_NO_ERROR. On failure, an error object representing the failure.
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