External Mapping Functions REST Endpoints

External Mapping Functions
External Mapping Functions is the contract that ensures the implementation of external functions that are used for transformations in the mapping file.
Get external function swagger for mapping file
Method: get
Path: https://{FusionAppsHost}/crmRestApi/atcProductCatalog/11.13.18.05/productCatalogManagement/v1/swagger/ExternalFunctionSwagger