To allow users to send their location via chatbot. You will have to do the following two activities.
1. Enable the API 2. Enter API key
Enable the API you wish to set from the below options. These options will direct you to Google API library to complete the process.
The API key is the same for all. You will find the key id under the credentials tab on Google Cloud platform. Copy the key, paste it on Location setting tab and click on update.