class CardStackPanResponder {
}

class PagerPanResponder {
}

const NavigationCard = (props) => null;

NavigationCard.CardStackPanResponder = CardStackPanResponder;
NavigationCard.CardStackStyleInterpolator = {
  forHorizontal: () => ({}),
  forVertical: () => ({}),
};
NavigationCard.PagerPanResponder = PagerPanResponder;
NavigationCard.PagerStyleInterpolator = {
  forHorizontal: () => ({}),
};

module.exports = NavigationCard;

import React from 'react';

class CardStackPanResponder {
}

class PagerPanResponder {
}

class NavigationCard extends React.Component {
  static CardStackPanResponder = CardStackPanResponder;
  static CardStackStyleInterpolator = {
    forHorizontal: () => ({}),
    forVertical: () => ({}),
  };
  static PagerPanResponder = PagerPanResponder;
  static PagerStyleInterpolator = {
    forHorizontal: () => ({}),
  };
}

module.exports = NavigationCard;

Use static fields in the component class
Use static fields in the component class
