Godeps/_workspace/src/gopkg.in/mgo.v2/session.go
func (s *Session) Run(cmd interface{}, result interface{}) error {
	return s.DB("admin").Run(cmd, result)
}
func (s *Session) Run(cmd interface{}, result interface{}) error {
	return s.DB("admin").Run(cmd, result)
}
func ( s * Session ) Run ( cmd interface { } , result interface { } ) error { return s . DB ( " " ) . Run ( cmd , result ) }
// Run issues the provided command on the "admin" database and
// and unmarshals its result in the respective argument. The cmd
// argument may be either a string with the command name itself, in
// which case an empty document of the form bson.M{cmd: 1} will be used,
// or it may be a full command document.
//
// Note that MongoDB considers the first marshalled key as the command
// name, so when providing a command with options, it's important to
// use an ordering-preserving document, such as a struct value or an
// instance of bson.D.  For instance:
//
//     db.Run(bson.D{{"create", "mycollection"}, {"size", 1024}})
//
// For commands on arbitrary databases, see the Run method in
// the Database type.
//
// Relevant documentation:
//
//     http://www.mongodb.org/display/DOCS/Commands
//     http://www.mongodb.org/display/DOCS/List+of+Database+CommandSkips
//
Run issues the provided command on the admin database and and unmarshals its result in the respective argument . The cmd argument may be either a string with the command name itself in which case an empty document of the form bson . M { cmd : 1 } will be used or it may be a full command document . Note that MongoDB considers the first marshalled key as the command name so when providing a command with options it s important to use an ordering - preserving document such as a struct value or an instance of bson . D . For instance : db . Run ( bson . D {{ create mycollection } { size 1024 }} ) For commands on arbitrary databases see the Run method in the Database type . Relevant documentation : http : // www . mongodb . org / display / DOCS / Commands http : // www . mongodb . org / display / DOCS / List + of + Database + CommandSkips