action clever_get_grade_levels_for_teacher { label: "getGradeLevelsForTeacher" description: "Returns the grade levels for sections a teacher teaches" provider: clever method: GET path: "/teachers/{id}/grade_levels" encoding: json input: { type: "object" properties: { id: { type: "string" } } required: ["id"] additionalProperties: false } output: { type: "object" properties: { data: { type: "array" items: { type: "string" } } } } }