def METHOD_NAME(certificate_name: Optional[str] = None,
                    resource_group_name: Optional[str] = None,
                    resource_name: Optional[str] = None,
                    opts: Optional[pulumi.InvokeOptions] = None) -> AwaitableGetCertificateResult:
    """
    Returns the certificate.
    :param str certificate_name: The name of the certificate
    :param str resource_group_name: The name of the resource group that contains the IoT hub.
    :param str resource_name: The name of the IoT hub.
    """
    __args__ = dict()
    __args__['certificateName'] = certificate_name
    __args__['resourceGroupName'] = resource_group_name
    __args__['resourceName'] = resource_name
    opts = pulumi.InvokeOptions.merge(_utilities.get_invoke_opts_defaults(), opts)
    __ret__ = pulumi.runtime.invoke('azure-native:devices/v20230630preview:getCertificate', __args__, opts=opts, typ=GetCertificateResult).value
    return AwaitableGetCertificateResult(
        etag=pulumi.get(__ret__, 'etag'),
        id=pulumi.get(__ret__, 'id'),
        name=pulumi.get(__ret__, 'name'),
        properties=pulumi.get(__ret__, 'properties'),
        type=pulumi.get(__ret__, 'type'))