{
  "valid": [
    "assignee changed",
    "assignee cHanGeD",
    "assignee changed after \"2021-03-17\"",
    "assignee changed after -4w",
    "assignee changed after startOfWeek()",
    "assignee changed before \"2021-03-17\"",
    "assignee changed before -4w",
    "assignee changed before now()",
    "assignee changed on \"2021-03-17\"",
    "assignee changed on -4w",
    "assignee changed on now()",
    "assignee changed during (\"2021-03-17\", now())",
    "assignee changed by a",
    "assignee changed by currentUser()",
    "assignee changed by (a, currentUser())",
    "assignee changed from empty to null",
    "assignee changed from a to b",
    "assignee changed from currentUser() to membersOf(\"jira-administrators\")",
    "assignee changed from value to another_value by jane after \"2020/07/31\" before \"2020/08/05\""
  ],
  "invalid": [
    "assignee changed value",
    "assignee changed after",
    "assignee changed before",
    "assignee changed on",
    "assignee changed during",
    "assignee changed by",
    "assignee changed from",
    "assignee changed to"
  ]
}