Where to configure placeholder for the target host gateway on sample hosts.yml ?

Products

• CA API Gateway
• API SECURITY
• CA API Gateway Precision API Monitoring Module for API Gateway (Layer 7)
• CA API Gateway Enterprise Service Manager (Layer 7)
• STARTER PACK-7
• CA Microgateway

Issue/Introduction

Regarding the host file structure, the one which is provided under sample (https://github.com/CAAPIM/gateway-ansible-playbook/blob/develop/inventories/sample/hosts.yml) 
Where are the placeholder for the target host gateway , where the configuration would be imported ?

Environment

Release : 9.4

Component : API GATEWAY

Resolution

Basically anything that reads target is replaced with your target hostname, and anything with source need to be replaced with your source hostname.
an example :

---
all:
hosts:
children:
gateway:
children:
gateway_mysql:
children:
gateway_primary_db:
hosts:
target-gw.placeholder.com:
src: source-db-gw.placeholder.com

it'll be...

---
all:
hosts:
children:
gateway:
children:
gateway_mysql:
children:
gateway_primary_db:
hosts:
gateway-10.test.broadcom.net:
src: gateway-94.test.broadcom.net

Additional Information

https://github.com/CAAPIM/gateway-ansible-playbook/blob/develop/inventories/sample/hosts.yml