Using the JSON file:/authorize/composer.jsonBy using the provided code:{
"require": { "php": ">=5.6", "ext-curl": "*", "phpunit/phpunit":
"~4.8||~6.0", "authorizenet/authorizenet": ">=1.9.6 || <2.0" },
"autoload": { "classmap": ["constants"] } }and b...
