code: function inferType(type) {
    if (!type) return '';
  
    function iterateTypes(subTree) {
      return map(normalizeValue(subTree), inferType).join(', ');
    }
  
    switch (type.name) {
      case 'arrayOf':
        return `array of ${iterateTypes(type.value)}`;
      case 'custom':
        return COMMON_PROP_TYPES_TO_LINKS_MAP[type.raw] || type.raw;
      case 'enum':
        return `one of: ${iterateTypes(type.value)}`;
      case 'shape':
      case 'shapeOf': // FALL THROUGH
        return 'object';
      case 'union':
        return iterateTypes(type.value);
      default:
        return type.name || type.value;
    }
  }
docs: Given a type description object, return legible string description
  @param {Object} type
  @return {String}