Call function that inserts google tag manager code just after opening body tag (for use with Oxygen & Duracell Tomi's Google Tag Manager for WordPress)

snippet.php

add_action( 'plugins_loaded', 'lit_oxy_gtm' );
function lit_oxy_gtm() {
    
	if( class_exists( 'CT_Component' ) ) {
        
      add_action( 'ct_before_builder', 'lit_add_gtm_tag'  );
    
    }
}

/**
 * Call function that inserts google tag manager code just after opening body tag
 * See (https://wordpress.org/plugins/duracelltomi-google-tag-manager/)
 */
function lit_add_gtm_tag() {

    if ( function_exists( 'gtm4wp_the_gtm_tag' ) ) { 
        gtm4wp_the_gtm_tag(); 
    }

}