function createStorage(config) {
  return {
    id: "custom-template",

    async init() {
      // Initialize connections/resources here.
    },

    async exists(key) {
      // Return true/false for existence of key.
      return false;
    },

    async readJson(key, fallback = null) {
      // Return parsed object or fallback.
      return fallback;
    },

    async writeJson(key, value) {
      // Persist JSON object.
      void key;
      void value;
    },

    async appendText(key, text) {
      // Append one line/chunk (used for audit log).
      void key;
      void text;
    },

    async readText(key, fallback = "") {
      // Return full text content or fallback.
      void key;
      return fallback;
    },

    async writeText(key, text) {
      // Overwrite full text content.
      void key;
      void text;
    }
  };
}

module.exports = {
  createStorage
};