Is there a way to use 'macros' in nginx

For example for apache I can do something like
[code]
<Macro myMacro>
<VirtualHost>
ServerName $blah
Alias www.$blah

Log /var/log/apache2/$blah
</VirtualHost>
</Macro>
[/code]

and then use it for many hosts like:
Use myMacro hello.com
Use myMacro hi.com

Is there a way to do something similar in nginx?