In the code below, what is the lifetime of the generated token (keycloak_token) or what is the maximum permitted number of requests by keycloak_token?
import requests
def get_keycloak(username: str, password: str) -> str:
    data = {
        "client_id": "cdse-public",
        "username": "---",
        "password": "---",
        "grant_type": "password",
        }
    try:
        r = requests.post("https://identity.dataspace.copernicus.eu/auth/realms/CDSE/protocol/openid-connect/token",
        data=data,
        )
        r.raise_for_status()
    except Exception as e:
        raise Exception(
            f"Keycloak token creation failed. Reponse from the server was: {r.json()}"
            )
    return r.json()["access_token"]
keycloak_token = get_keycloak("username", "password")
        