List cohorts

{  "data": [    {      "id": "an_cohort_q8w4e6r0t5y2u8k3v9m2x7c1",      "projectId": "proj_tz4a98xxat96iws9zmbrgj3a",      "name": "Power users",      "description": "Finished three workouts in the last 30 days.",      "kind": "dynamic",      "definition": {        "match": "all",        "conditions": [          {            "kind": "performed",            "event": "workout_completed",            "isNegated": false,            "count": {              "op": "gte",              "value": 3            },            "withinDays": 30,            "filters": []          }        ]      },      "memberCount": null,      "createdAt": "2026-03-05T12:00:00.000Z",      "updatedAt": "2026-03-05T12:00:00.000Z"    },    {      "id": "an_cohort_m2x7c1q8w4e6r0t5y2u8k3v9",      "projectId": "proj_tz4a98xxat96iws9zmbrgj3a",      "name": "Beta testers",      "description": null,      "kind": "static",      "definition": null,      "memberCount": 1,      "createdAt": "2026-03-05T12:00:00.000Z",      "updatedAt": "2026-03-14T09:26:53.000Z"    }  ],  "pageInfo": {    "endCursor": null,    "hasNextPage": false  }}

{  "error": {    "type": "invalid_request",    "code": "invalid_cursor",    "message": "This cursor does not continue the list. Start again without a cursor.",    "param": "cursor"  }}

{  "error": {    "type": "unauthenticated",    "code": "invalid_api_key",    "message": "This secret key is not valid."  }}

{  "error": {    "type": "permission_denied",    "code": "permission_denied",    "message": "Insufficient permissions."  }}

{  "error": {    "type": "not_found",    "code": "project_not_found",    "message": "There is no project proj_tz4a98xxat96iws9zmbrgj3a, or this credential cannot use it.",    "param": "projectId"  }}

{  "error": {    "type": "internal",    "code": "internal_error",    "message": "Something went wrong on our side. Try again, and contact support with the Request-Id header if it keeps failing."  }}

{  "error": {    "type": "unavailable",    "code": "string",    "message": "string",    "param": "string"  }}