code: func (c *CSS) GetStyleSheetText(styleSheetId string) (string, error) {
  	var v CSSGetStyleSheetTextParams
  	v.StyleSheetId = styleSheetId
  	return c.GetStyleSheetTextWithParams(&v)
  }
docs: // GetStyleSheetText - Returns the current textual content for a stylesheet.
  // styleSheetId -
  // Returns -  text - The stylesheet text.