text: exports.up = function (knex) {
    return knex.schema.createTable("users", (table) => {
      table.increments("id");
      table.string("username", 255).notNullable().unique();
      table.string("password", 255).notNullable();
      table.integer("books").notNullable().defaultTo(0);
    });
  };
  
  exports.down = function (knex) {
    return knex.schema.dropTable("users");
  };
  