# Function isGroupID

- isGroupID(value: string): value is GroupID

  Type guard to check if a string is a valid Political Group ID

  #### Parameters

  - value: string

    String to validate

  #### Returns value is GroupID

  true if the value matches Group ID format

  #### Example

      if (isGroupID("EPP")) {
        const id = "EPP" as GroupID;
      }

  - Defined in types/branded.ts:184