Custom column in post type Servicos - Correct

functions

<?php
/* Coluna Serviços */
function servicos_manage_edit_columns( $columns ) {
 
  $servicos_columns = array(
    "cb" => $columns["cb"],
    "title" => $columns["title"],
    "inicial" => 'Página Inicial',
    "date" => $columns["date"],
  );
  return $servicos_columns;
 
}

function servicos_manage_columns( $column ) {
  global $post;
  switch ($column) {
    case 'inicial' :
    	$terms = get_post_meta( $post->ID, 'checkbox', true );
    		if( !empty( $terms ) )
    			echo "Sim";
    		else
    			echo "Não";
    break; 
  }
}

add_filter( 'manage_edit-servicos_columns', 'servicos_manage_edit_columns' );
add_action( "manage_posts_custom_column", 'servicos_manage_columns', 10, 2);
?>