Create child entry in parent entry via acf_form?

Question

WordPress

Good time.
I wanted to add a child indicating a guardian entry through the acf plugin.
Looked found only adding of record and creation of child record was not found.
Who knows tell me how to create a child record.

acf_form(array(
    'post_id'		=> 'new_post',
    'post_title'	=> true,
    'post_content'	=> true,
    'new_post'		=> array(
      'post_type'		=> 'event',
      'post_status'	=> 'publish'
    )
));