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# Function_Name
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One-line description of what the function does (more than just what it returns).
:::
## [Syntax](#syntax)
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```{code}
#include <headers.h>
ReturnType Function_Name(
ParamType ParamName,
ParamType ParamName, );
```
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## [Parameters](#parameters)
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```{eval-rst}
+---------------+---------------------------------------------------------------------------------+
| ``ParamName`` | Sample: *in* pointer to a `CERTCertDBHandle </en-US/NSS/CERTCertDBHandle>`__ |
| | representing the certificate database to look in |
+---------------+---------------------------------------------------------------------------------+
| ``ParamName`` | Sample: *in* pointer to an `SECItem </en-US/NSS/SECItem>`__ whose ``type`` must |
| | be ``siDERCertBuffer`` and whose ``data`` contains a DER-encoded certificate |
+---------------+---------------------------------------------------------------------------------+
```
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## [Description](#description)
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Long description of this function, what it does, and why you would use it. Describe all
side-effects on "out" parameters. Avoid describing the return until the next section, for
example:
This function looks in the NSSCryptoContext and the NSSTrustDomain to find the certificate that
matches the DER-encoded certificate. A match is found when the issuer and serial number of the
DER-encoded certificate are found on a certificate in the certificate database.
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## [Returns](#returns)
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Full description of the return value, for example:
A pointer to a [CERTCertificate](/en-US/NSS/CERTCertificate) representing the certificate in
the database that matched the `derCert`, or `NULL` if none was found. The certificate is a
shallow copy, use [CERT_DestroyCertificate](/en-US/NSS/CERT_DestroyCertificate) to decrement
the reference count on the certificate instance.
:::
## [See Also](#see_also)
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Copy of the MXR link, with the following text
Occurrences of `Function_Name` in the current NSS source code (generated by MXR).
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