ea-skeleton.php

<?php
/**
 * Skeleton code for modifying imported event content
 */

add_action( 'tribe_aggregator_before_insert_posts', 'add_wp_content_filter' );

function add_wp_content_filter() {
	add_filter( 'wp_insert_post_data', 'filter_post_data' );
}

function filter_post_data( $data ) {
	// Do stuff here
	
	// Return data
	return $data;
}

add_action( 'tribe_aggregator_after_insert_posts', 'remove_ea_filters' );

function remove_ea_filters() {
	remove_action( 'tribe_aggregator_before_insert_posts', 'add_wp_content_filter' );
	remove_action( 'tribe_aggregator_after_insert_posts', 'remove_ea_filters' );
	remove_filter( 'wp_insert_post_data', 'filter_post_data' );
}