def reject_certificate_transfer(certificateId=None, rejectReason=None):
    """
    Rejects a pending certificate transfer. After AWS IoT rejects a certificate transfer, the certificate status changes from PENDING_TRANSFER to INACTIVE .
    To check for pending certificate transfers, call  ListCertificates to enumerate your certificates.
    This operation can only be called by the transfer destination. After it is called, the certificate will be returned to the source's account in the INACTIVE state.
    See also: AWS API Documentation
    
    
    :example: response = client.reject_certificate_transfer(
        certificateId='string',
        rejectReason='string'
    )
    
    
    :type certificateId: string
    :param certificateId: [REQUIRED]
            The ID of the certificate.
            

    :type rejectReason: string
    :param rejectReason: The reason the certificate transfer was rejected.

    """
    pass
