ajv.addSchema: A wrapper for the Ajv.addSchema method
Description
The add a schema to an Ajv instance
Usage
ajv.addSchema(this, schema, key)
Arguments
this
An AJV instance, provided implicitly when called via my_instance$addSchema(...)
schema
The schema to be added.
schema may be a valid JSON string, an R object (i.e. `list(...)`), a
connection to a JSON file, or the name of a JSON or YAML file. YAML files
are parsed via [js-yaml](https://www.npmjs.com/package/js-yaml)'s
`safeLoad()` method.