describeCertificates method
Returns a list of certificate authority (CA) certificates provided by Amazon DocumentDB for this AWS account.
May throw CertificateNotFoundFault.
Parameter certificateIdentifier :
The user-supplied certificate identifier. If this parameter is specified,
information for only the specified certificate is returned. If this
parameter is omitted, a list of up to MaxRecords certificates
is returned. This parameter is not case sensitive.
Constraints
- 
Must match an existing CertificateIdentifier.
Parameter filters :
This parameter is not currently supported.
Parameter marker :
An optional pagination token provided by a previous
DescribeCertificates request. If this parameter is specified,
the response includes only records beyond the marker, up to the value
specified by MaxRecords.
Parameter maxRecords :
The maximum number of records to include in the response. If more records
exist than the specified MaxRecords value, a pagination token
called a marker is included in the response so that the remaining results
can be retrieved.
Default: 100
Constraints:
- Minimum: 20
- Maximum: 100
Implementation
Future<CertificateMessage> describeCertificates({
  String? certificateIdentifier,
  List<Filter>? filters,
  String? marker,
  int? maxRecords,
}) async {
  final $request = <String, dynamic>{};
  certificateIdentifier
      ?.also((arg) => $request['CertificateIdentifier'] = arg);
  filters?.also((arg) => $request['Filters'] = arg);
  marker?.also((arg) => $request['Marker'] = arg);
  maxRecords?.also((arg) => $request['MaxRecords'] = arg);
  final $result = await _protocol.send(
    $request,
    action: 'DescribeCertificates',
    version: '2014-10-31',
    method: 'POST',
    requestUri: '/',
    exceptionFnMap: _exceptionFns,
    shape: shapes['DescribeCertificatesMessage'],
    shapes: shapes,
    resultWrapper: 'DescribeCertificatesResult',
  );
  return CertificateMessage.fromXml($result);
}