Migrating table structures and data

I'm working on a DynamoDB solution that will need to be migrated to a customer's AWS instance at some point. I have a table that I would like to script out so I can use that to create the table on the customer's instance using AWS CLI. I can use describe-table to create a script, so surely there's a way to use it to create the table, but create-table doesn't take a file as a parameter?

Likewise, with the data, you can create a json file of all records, but it's in a different format to the file you specify in the --request-items parameter of batch-write-item. So, how do you migrate data from one instance of a table to another?