Add ACF fields for indexing

.php

<?php
// Step 1
// Adding the ACF field to schema to be indexed
 function cm_typesense_add_acf_field_to_schema( $schema, $name ) {
     if ( $name == 'post' ) { // change post to your schema name
         $schema['fields'][] = [ 'name' => 'acf_field', 'type' => 'string' ]; //
     }


     return $schema;
 }
 add_filter( 'cm_typesense_schema', 'cm_typesense_add_acf_field_to_schema', 10, 2 );

// Step 2
// Formatting data for field
 function cm_typesense_format_acf_field_data ( $formatted_data, $raw_data, $object_id, $schema_name ) {
     if ( $schema_name == 'post' ) { // Change post to your schema name
					 $formatted_data['category'] = get_field( 'acf_field', $raw_data->ID );
     }
     return $formatted_data;
 }
 add_filter( 'cm_typesense_data_before_entry', 'cm_typesense_format_acf_field_data', 10, 4 );