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Introduction
  The purpose of this utility is to export type definitions and data from an Atlas repository.

What is Exported?
  All data and types are exported.

How Much Time Will this Take?
  The duration of the export process depends on the number of entities present in your database. While cluster configuration determines speed of operation,
  on an average, for cluster with reasonable configuration, it takes 30 minutes to export 1 million entities.

Steps to Start Export step of Migration
  - Shutdown Atlas. This is critical to ensure that no updates are being made to Atlas database while the operation is in progress.
  - Execute the following commands in the host where Atlas server runs:
    - unzip atlas-migration-exporter.zip
    - cd atlas-migration-exporter
    - python atlas_migration_export.py

Next Steps
  Once done, please use the Atlas Migration Guide for next steps.