What is the correct ways to write Boto3 filters to use customise tag name?

Question

I am trying to list the instances on tag values of different tag keys For eg> one tag key - Environment, other tag key - Role. My code is given below :

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Answer 1

In my own python script I use the following:

import boto3
ec2client = boto3.client('ec2','us-east-1')
response = ec2client.describe_instances(Filters=[{'Name' : 'instance-state-name','Values' : ['running']}])