Declare a variable without datatype

I have a piece of code that needs a variable declaration w/o its type. The variable is assigned a value later and that is an interface. pseudo code will look very similar to this:

var client
if some_condn {
   client = ssh.Dial(params)
} else {
   client = my_own_ssh_dial(my_params)
}
session,_ := client.NewSession()

The problem is GO does not allow a variable declaration w/o type. Is there any way I can use something like an generic Object (from Java) to default client to start with?

TIA

A variable must have a type in order to use it. The closest thing to an untyped variable would be the type interface{}, which is an interface type, but has no methods to call.

Since the goal here is to call the NewSession method, declare the variable with an interface containing that method.

var client interface {
	NewSession() (*ssh.Session, error)
}
if some_condn {
	client = ssh.Dial(params)
} else {
	client = my_own_ssh_dial(my_params)
}
session, _ := client.NewSession()

I'm pretty new to Go, but I'll take a stab. If it's wrong, cool. Unfortunately, I don't have enough code from you to actually try and do this - but essentially, you'll need to make your own type my_own_ssh, and then add a Dial function to it. Then, you'll define an

interface Client {
    Dial()
}

And then you can define your client variable with var client Client before the conditional check. You'll also need to create a function Dial that has a my_own_ssh receiver in order for the interface to work/make sense.

I'm very happy to receive feedback on this answer, because like I said - I'm pretty new to it