from gcore import Gcore

client = Gcore(
    api_key="My API Key",
)
k8s_cluster_certificate = client.cloud.k8s.clusters.get_certificate(
    cluster_name="cluster_name",
    project_id=0,
    region_id=0,
)
print(k8s_cluster_certificate.certificate)

{
  "certificate": "<string>",
  "key": "<string>"
}