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# getCustomObjectViewFields

Discover filterable attributes, operators, and value shapes for listCustomObjectsFiltered.

Call this BEFORE `listCustomObjectsFiltered` to discover which attributes can be
filtered on a custom object type, what operators each attribute supports, and how
to resolve valid values for DROPDOWN / RELATIONSHIP attributes.

## Parameters

| Name             | Type    | Required | Description                                 |
| ---------------- | ------- | -------- | ------------------------------------------- |
| `object_type_id` | integer | Yes      | The object type ID to get filter fields for |