if summary:
        info["summary"] = summary
    if description:
        info["description"] = description
    if terms_of_service:
        info["termsOfService"] = terms_of_service
    if contact:
        info["contact"] = contact
    if license_info:
        info["license"] = license_info
    output: dict[str, Any] = {"openapi": openapi_version, "info": info}
    if servers:
        output["servers"] = servers

    url: Optional[AnyUrl] = None


class Info(BaseModelWithConfig):
    title: str
    summary: Optional[str] = None
    description: Optional[str] = None
    termsOfService: Optional[str] = None
    contact: Optional[Contact] = None
    license: Optional[License] = None
    version: str


class ServerVariable(BaseModelWithConfig):
    enum: Annotated[Optional[list[str]], Field(min_length=1)] = None
    default: str

<small>* estimation based on tests conducted by an internal development team, building production applications.</small>

## Sponsors { #sponsors }

<!-- sponsors -->

### Keystone Sponsor { #keystone-sponsor }

{% for sponsor in sponsors.keystone -%}

<small>* estimation based on tests conducted by an internal development team, building production applications.</small>

## Sponsors

<!-- sponsors -->
### Keystone Sponsor