Acceder a un método público de un form a partir de otro form creado por el primero

Public Sub GestionForm1()
'... 
End Sub 
 
Public Sub AbrirForm2() 
 Dim miForm2 As MiForm2 = New MiForm2 
 miForm2.Owner = Me 
 miForm2.Show 
End Sub 
 
' en MiForm2
 
Private Sub ButtonOk_Click(ByVal sender As Object, ByVal e As System.EventArgs) 
 Dim miForm1 As MiForm1 = CType(Me.Owner, MiForm1) 
 miForm1.GestionForm1
End Sub