def _get(self, plugin_name):
for p in self._plugins:<EOL><INDENT>if p.name == plugin_name:<EOL><INDENT>return p<EOL><DEDENT><DEDENT>return None<EOL>
Retrieves the plugin with given name

:param plugin_name: Name of the plugin to retrieve
:return samtranslator.plugins.BasePlugin: Returns the plugin object if found. None, otherwise