Function attributeExists

attributeExists(
    platformUrl: string,
    auth: AuthConfig,
    attributeFqn: string,
): Promise<boolean>
Reports whether the attribute definition identified by attributeFqn exists on the platform.

attributeFqn should be an attribute-level FQN (no /value/ segment): https://<namespace>/attr/<attribute_name>
Parameters
- platformUrl: string
  The platform base URL.
- auth: AuthConfig
- attributeFqn: string
  The attribute-level FQN to check.
Returns Promise<boolean>
true if the attribute exists, false if it does not.

Throws
ConfigurationError if the FQN format is invalid or the URL is insecure.

Throws
NetworkError if a non-not-found service error occurs.
- Defined in src/policy/discovery.ts:160