ibutes
=head2 request_type
Sets the request type. Default as C<JSON>.
=head2 response_type
Sets the response type. Default as C<JSON>.
=head2 request_version
Sets the response version. Default a
type response_type)] => (
is => 'ro',
isa => 'Str',
default => sub { return 'JSON' },
);
has request_version => (
is => 'ro',
isa => 'Str',
default => sub {