unrestricted google cloud sql database flags

gistfile1.txt

gcloud sql flags list
{
  "kind": "sql#flagsList",
  "items": [
    {
      "name": "character_set_server",
      "type": "STRING",
      "appliesTo": [
        "MYSQL_5_5",
        "MYSQL_5_6",
        "MYSQL_5_7",
        "MYSQL_8_0"
      ],
      "allowedStringValues": [
        "latin1",
        "utf8",
        "utf8mb4"
      ],
      "requiresRestart": true,
      "kind": "sql#flag"
    },
…