Function attributeValueExists

attributeValueExists(
    platformUrl: string,
    auth: AuthConfig,
    valueFqn: string,
): Promise<boolean>
Reports whether the attribute value FQN exists on the platform.

valueFqn should be a full attribute value FQN (with /value/ segment): https://<namespace>/attr/<attribute_name>/value/<value>
Parameters
- platformUrl: string
  The platform base URL.
- auth: AuthConfig
- valueFqn: string
  The attribute value FQN to check.
Returns Promise<boolean>
true if the value exists, false if it does not.

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

Throws
NetworkError if a service error occurs.
- Defined in src/policy/discovery.ts:200