Phone Number Migrator
    
      The migrator is a tool which takes in a given E.164 phone number(s)
      input as well as the corresponding BCP-47 country code. The tool
      will then check the validity of the phone number based on the country code and if possible, will convert the number
      into a valid, dialable format.
    
    The following are the two available migration types that can be performed:
    
      - 
        Single Number Migration: input a single E.164 phone number with its corresponding BCP-47 country
        code. If there is an available migration that can be performed on the number, it will be converted to the new
        format based on the specified migration rules.
 
 
- 
        File Migration: input a text file containing one E.164 number per line along with the BCP-47
        country code that corresponds to the numbers in the text file. All numbers in the text file that match available
        migrations will be migrated and there will be the option of downloading a new text file containing the updated numbers.
        By default, invalid migrations and numbers that did not go through a process of migration will be written to file
        in their original text file format.
        
 
 
      For more information on the capabilities of the migrator as well as instructions on how to install the command line
      tool, please view the documentation.