code: public RegisterJobDefinitionRequest withParameters(java.util.Map<String, String> parameters) {
          setParameters(parameters);
          return this;
      }
docs: <p>
  Default parameter substitution placeholders to set in the job definition. Parameters are specified as a key-value
  pair mapping. Parameters in a <code>SubmitJob</code> request override any corresponding parameter defaults from
  the job definition.
  </p>
  
  @param parameters
  Default parameter substitution placeholders to set in the job definition. Parameters are specified as a
  key-value pair mapping. Parameters in a <code>SubmitJob</code> request override any corresponding
  parameter defaults from the job definition.
  @return Returns a reference to this object so that method calls can be chained together.