/**
  * Create headers statements
  *
  * @param Operation $operation
  * @param Expr\Variable $queryParamVariable
  *
  * @return array
  */
 protected function createHeaderStatements(Operation $operation, $queryParamVariable)
 {
     $headerVariable = new Expr\Variable('headers');
     $headers = [new Expr\ArrayItem(new Scalar\String_($operation->getHost()), new Scalar\String_('Host'))];
     $produces = $operation->getOperation()->getProduces();
     if ($produces && in_array("application/json", $produces)) {
         $headers[] = new Expr\ArrayItem(new Expr\Array_([new Expr\ArrayItem(new Scalar\String_("application/json"))]), new Scalar\String_('Accept'));
     }
     $consumes = $operation->getOperation()->getProduces();
     if ($operation->getOperation()->getParameters() && $consumes) {
         $bodyParameters = array_filter($operation->getOperation()->getParameters(), function ($parameter) {
             return $parameter instanceof BodyParameter;
         });
         if (count($bodyParameters) > 0 && in_array("application/json", $consumes)) {
             $headers[] = new Expr\ArrayItem(new Scalar\String_("application/json"), new Scalar\String_('Content-Type'));
         }
     }
     return [[new Expr\Assign($headerVariable, new Expr\FuncCall(new Name('array_merge'), [new Arg(new Expr\Array_($headers)), new Arg(new Expr\MethodCall($queryParamVariable, 'buildHeaders', [new Arg(new Expr\Variable('parameters'))]))]))], $headerVariable];
 }
 /**
  * Create headers statements
  *
  * @param Operation $operation
  * @param Expr\Variable $queryParamVariable
  *
  * @return array
  */
 protected function createHeaderStatements(Operation $operation, $queryParamVariable)
 {
     $headerVariable = new Expr\Variable('headers');
     return [[new Expr\Assign($headerVariable, new Expr\FuncCall(new Name('array_merge'), [new Arg(new Expr\Array_([new Expr\ArrayItem(new Scalar\String_($operation->getHost()), new Scalar\String_('Host'))])), new Arg(new Expr\MethodCall($queryParamVariable, 'buildHeaders', [new Arg(new Expr\Variable('parameters'))]))]))], $headerVariable];
 }