Steps to make key.json file:

Key steps:

Access Google Cloud Console: Go to the Google Cloud Platform console.

Navigate to Service Accounts: Under "IAM & Admin", select "Service Accounts".

Select your Service Account: Choose the service account you want to access the key for.

Create a new key: Click "Keys" > "Add Key" > "Create new key".

Choose JSON format: Select "JSON" as the key type.

Download the file: Click "Create" to download the "my-key.json" file.

Uploading to Colab:

Open your Colab notebook: Access your Google Colab notebook.

Use the file upload feature: In the left sidebar, click on the folder icon to access the file explorer and select "Upload".

Select "my-key.json": Choose the downloaded "my-key.json" file from your computer.