code: public GetStageResult withVariables(java.util.Map<String, String> variables) {
          setVariables(variables);
          return this;
      }
docs: <p>
  A map that defines the stage variables for a <a>Stage</a> resource. Variable names can have alphanumeric and
  underscore characters, and the values must match <code>[A-Za-z0-9-._~:/?#&amp;=,]+</code>.
  </p>
  
  @param variables
  A map that defines the stage variables for a <a>Stage</a> resource. Variable names can have alphanumeric
  and underscore characters, and the values must match <code>[A-Za-z0-9-._~:/?#&amp;=,]+</code>.
  @return Returns a reference to this object so that method calls can be chained together.