see on GitHub

Operations : Server : How to Get Certificates

To get client certificates use GetCertificatesOperation.

Syntax

public GetCertificatesOperation(int start, int pageSize)

Parameters
pageSize int Maximum number of records that will be downloaded
start int Number of records that should be skipped
Return Value
CertificateDefinition[] Array of certificate definitions

Example

CertificateDefinition[] definitions = 
    store.Maintenance.Server.Send(new GetCertificatesOperation(0, 20));