logotipo sile wordpress programaticamente

$custom_logo_id = get_theme_mod( 'custom_logo' );
$logo = wp_get_attachment_image_src( $custom_logo_id , 'full' );
if ( has_custom_logo() ) {
        echo '<img src="' . esc_url( $logo[0] ) . '" alt="' . get_bloginfo( 'name' ) . '">';
} else {
        echo '<h1>'. get_bloginfo( 'name' ) .'</h1>';
}
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