private static void expandChildSchema(@NotNull JsonSchemaTreeNode node,
                                        @Nullable JsonSchemaNodeExpansionRequest expansionRequest,
                                        @NotNull JsonSchemaObject childSchema,
                                        @NotNull JsonSchemaService service) {
    if (interestingSchema(childSchema)) {
      node.createChildrenFromOperation(getOperation(service, childSchema, expansionRequest));
    }
    else {
      node.setChild(childSchema);
    }
  }
private static void expandChildSchema(@NotNull JsonSchemaTreeNode node,
                                        @Nullable JsonSchemaNodeExpansionRequest expansionRequest,
                                        @NotNull JsonSchemaObject childSchema,
                                        @NotNull JsonSchemaService service)