code: function transform(hash, styles, settings = {}) {
    generator = settings.generator
    offset = settings.offset
    filename = settings.filename
    splitRules = []
  
    stylis.set({
      prefix:
        typeof settings.vendorPrefixes === 'boolean'
          ? settings.vendorPrefixes
          : true
    })
  
    stylis(hash, styles)
  
    if (settings.splitRules) {
      return splitRules
    }
  
    return splitRules.join('')
  }
docs: Public transform function
  
  @param {String} hash
  @param {String} styles
  @param {Object} settings
  @return {string}