The model cannot be created. If the properties section of the object corresponding to the model in the yaml file is empty ?

Description

The model is not created while using the Kotlin generator if properties is empty in the yaml file, and For the models using this object assigned as kotlin.Any, For example,

Created model ⤵️

data class RandomRequest(
    @SerializedName("currency") val currency: kotlin.Any,
    .
    .
    .
)

yaml ⤵️

components:
  schemas:
    Currency:
      type: object
      description: |
        This is an empty class map it as you wish

But if I add a properties for the yaml object it gets created without an error, For example,

Created model ⤵️

data class RandomRequest(
    @SerializedName("currency") val currency: Currency,
    .
    .
    .
)

yaml ⤵️

components:
  schemas:
    Currency:
      type: object
      properties:
        amount:
          type: number
      description: |
        This is an empty class map it as you wish

it should be represented as an object in the yaml file cause different clients want to map it as they wish by using typeMappings.

openapi-generator version

classpath "org.openapitools:openapi-generator-gradle-plugin:7.5.0" (But its same with the v7.8.0 as well)

Start with the Kotlin generator using the issue's empty-object YAML schema, then compare its output with the schema after a property is added. Check how empty object models and typeMappings are handled. Done means the empty Currency schema produces a usable named model instead of kotlin.Any while preserving clients' ability to map it.