in src/panda.ts [70:80]
constructor(cookieName: string, region: string, bucket: string, keyFile: string, validateUser: ValidateUserFn) {
this.cookieName = cookieName;
this.region = region;
this.bucket = bucket;
this.keyFile = keyFile;
this.validateUser = validateUser;
this.publicKey = fetchPublicKey(region, bucket, keyFile);
this.keyUpdateTimer = setInterval(() => this.getPublicKey(), this.keyCacheTime);
}