Creates a "DataSource" object.Show details from next link. https://docs.aws.amazon.com/ja_jp/cli/latest/reference/machinelearning/create-data-source-from-s3.html
| aws machinelearning create-data-source-from-s3 --cli-input-json file://data/cfg/dsrc_training_00 |
| amazon web services - AWS Machine Learning error when creating DataSource from S3 - Stack Overflow : http://stackoverflow.com/questions/46970343/aws-machine-learning-error-when-creating-datasource-from-s3 |