Wp-Property – How do I add a meta_query to query in “parse_request” function?

Wp-Property –

I have postmeta tags saved in each property. the key is “datesavailable” and values are an array of dates. How do I add a meta_query to query the search?

There is a filter called “parse_request” and i am adding my code to that filter
but it does not work

function my_parse_request(&$query)
{
$query->query_vars[‘meta_query’][] = [
‘key’ => ‘datesavailable’,
‘value’ => date(‘d-m-Y’),
‘compare’ => ‘BETWEEN’
];

return $query;

}

Can anybody help?