The value of "additionalProperties" MUST be a boolean or a schema.
If "additionalProperties" is absent, it may be considered present with an empty schema as a
value.
If "additionalProperties" is true, validation always succeeds.
If "additionalProperties" is false, validation succeeds only if the instance is an object and
all properties on the instance were covered by "properties" and/or "patternProperties".
If "additionalProperties" is an object, validate the value as a schema to all of the properties
that weren't validated by "properties" nor "patternProperties".
Value can be boolean or object. Inline or referenced schema MUST be of a Schema Object and not
a standard JSON Schema. Consistent with JSON Schema, additionalProperties defaults to true.
The value of "additionalProperties" MUST be a boolean or a schema.
If "additionalProperties" is absent, it may be considered present with an empty schema as a value.
If "additionalProperties" is true, validation always succeeds.
If "additionalProperties" is false, validation succeeds only if the instance is an object and all properties on the instance were covered by "properties" and/or "patternProperties".
If "additionalProperties" is an object, validate the value as a schema to all of the properties that weren't validated by "properties" nor "patternProperties".
Value can be boolean or object. Inline or referenced schema MUST be of a Schema Object and not a standard JSON Schema. Consistent with JSON Schema, additionalProperties defaults to true.