Langfuse
constructor(secretKey: String = SystemPropertyUtils.resolvePlaceholders(
"\${LANGFUSE_SECRET_KEY}",
), publicKey: String = SystemPropertyUtils.resolvePlaceholders(
"\${LANGFUSE_PUBLIC_KEY}",
), host: String = SystemPropertyUtils.resolvePlaceholders(
"\${LANGFUSE_HOST}",
))
primary constructor, accepts secretKey, publicKey, and host with default values from system properties