def get_grant_name(grant):
    """Get grant name based on Grantee type."""
    grant_name = ""
    if grant["Grantee"]["Type"] == "Group":
        uri = grant["Grantee"]["URI"]
        grant_name = uri.rsplit("/", 1)[-1]

    if grant["Grantee"]["Type"] == "CanonicalUser":
        grant_name = grant["Grantee"]["DisplayName"]

    return grant_name