code: public DescribeSigningJobResult withSigningParameters(java.util.Map<String, String> signingParameters) {
          setSigningParameters(signingParameters);
          return this;
      }
docs: <p>
  Map of user-assigned key-value pairs used during signing. These values contain any information that you specified
  for use in your signing job.
  </p>
  
  @param signingParameters
  Map of user-assigned key-value pairs used during signing. These values contain any information that you
  specified for use in your signing job.
  @return Returns a reference to this object so that method calls can be chained together.