protected function getInitHeaders(): array
    {
        // Initial payload consists of required headers for Wildfire
        return array_merge(
            $this->createHeader(['Protocol', 1], static::PROTOCOL_URI),
            $this->createHeader([1, 'Structure', 1], static::STRUCTURE_URI),
            $this->createHeader([1, 'Plugin', 1], static::PLUGIN_URI)
        );
    }
protected function getInitHeaders(): array
    {
        // Initial payload consists of required headers for Wildfire
        return array_merge(
            $this->createHeader(['Protocol', 1], static::PROTOCOL_URI),
            $this->createHeader([1, 'Structure', 1], static::STRUCTURE_URI),
            $this->createHeader([1, 'Plugin', 1], static::PLUGIN_URI)
        );
    }
protected function getInitHeaders ( ) : array { // Initial payload consists of required headers for Wildfire return array_merge ( $ this -> createHeader ( [ 'Protocol' , 1 ] , static :: PROTOCOL_URI ) , $ this -> createHeader ( [ 1 , 'Structure' , 1 ] , static :: STRUCTURE_URI ) , $ this -> createHeader ( [ 1 , 'Plugin' , 1 ] , static :: PLUGIN_URI ) ) ; }
Wildfire initialization headers to enable message parsing

@see createHeader()
@see sendHeader()
Wildfire initialization headers to enable message parsing