Hello guys. This is probably a novice question, but I am reading the metaflow book chapter 7.2, and there is this "Setting up a table on Athena" section, which says:

make sure that your IAM user or Batch role (METAFLOW_ECS_S3_ACCESS_ IAM_ROLE in the Metaflow config) has a policy called AmazonAthenaFullAccess attached to it, which allows Athena queries to be executed. Also, make sure the AWS region is set in your configuration, for example, by setting the environment variable AWS_DEFAULT_REGION=us-east-1

How exactly set these AWS variables? Like in the AWS console or in the local config file? Thanks for any help in advance!