List presets

{  "items": [    {      "name": "string",      "description": "",      "capability": null,      "provider": {},      "credential": "auto",      "fields": [        "string"      ],      "max_cost_micro": 0,      "stop_when": "hit",      "options": {        "timing": {          "timeout_ms": 100,          "deadline_ms": 100,          "hedge_after_ms": 50,          "wait_s": 0,          "run_at": "2019-08-24T14:15:22Z",          "delay_s": 1,          "schedule": "string",          "job_ttl_s": 60,          "retry": {            "max": 0,            "backoff": "fixed",            "base_ms": 10,            "max_ms": 10,            "jitter": true,            "retry_on": [              "429"            ]          }        },        "concurrency": {          "max_concurrency": 1,          "per_provider_concurrency": 1,          "priority": "low",          "ordering": "fifo"        },        "rate": {          "per_second": 0.01,          "per_minute": 1,          "burst": 1,          "adaptive": true        },        "cost": {          "max_cost_micro": 0,          "daily_cap_micro": 0,          "budget": "string",          "dry_run": true,          "quote_only": true        },        "routing": {          "provider": {            "order": [              "string"            ],            "only": [              "string"            ],            "ignore": [              "string"            ],            "allow_fallbacks": true,            "sort": "price",            "max_cost_micro": 0,            "max_price_micro": 0,            "preferred_max_latency_ms": 1,            "data_policy": {              "storage": "any",              "zdr": false            },            "require_verified": true          },          "preset": "string",          "waterfall": "string"        },        "data": {          "fields": [            "string"          ],          "cache": {            "mode": "prefer",            "max_age_s": 0,            "ttl_s": 60,            "stale_while_revalidate_s": 0,            "write": true,            "class_ttl_s": {              "work_email": 60,              "personal_email": 60,              "phone": 60,              "title": 60,              "firmographics": 60,              "technographics": 60,              "signals": 60,              "verification": 60,              "social": 60,              "other": 60            }          },          "store": {            "records": true,            "bodies": true          }        },        "delivery": {          "mode": "sync",          "webhook": {            "url": "http://example.com",            "events": [              "completed"            ],            "secret_ref": "string"          },          "destination": "string",          "stream": "sse"        },        "identity": {          "idempotency_key": "string",          "dedupe_window_s": 0,          "meta": {            "property1": "string",            "property2": "string"          },          "app": "string",          "run": "string",          "end_user": "string"        },        "observability": {          "log_level": "full",          "redact_fields": [            "string"          ],          "tail": true,          "tail_sample": 0        }      },      "object": "preset",      "slug": "string",      "created_at": "2019-08-24T14:15:22Z",      "updated_at": "2019-08-24T14:15:22Z",      "updated_by": "string"    }  ]}