fix: additional params for fmtOptions (#415)

* fix: additional params for fmtOptions

Since those parameters are already passed properly there should be no need to change anything but the type definition for the fmt_options

* Update src/types/index.d.ts

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Co-authored-by: Enes Kutay SEZEN <eneskutaysezen@gmail.com>

Author: jensmeichler

src/types/index.d.ts

@@ -162,6 +162,9 @@ export interface FmtOptions extends Record<string, any> {
   groups_max_depth?: number;
   groups_start?: 'current' | 'top' | `group_id:${string}`;
   fields?: string[]; // Array of metadata field to be returned in the data response
+  hidden_fields?: string[];
+  show_hidden_fields?: boolean;
+  variations_return_type?: 'default' | 'all' | 'matched';
 }
 
 export type Nullable<T> = T | null;