macos - Automount SMB using keychain password

Is there a way to use the automount service to mount my NAS share but without specifying my password in my SMB path?

Currently, I have the following:

/etc/auto_master

#
# Automounter master map
#
+auto_master            # Use directory service
/net                    -hosts          -nobrowse,hidefromfinder,nosuid
/home                   auto_home       -nobrowse,hidefromfinder
/Network/Servers        -fstab
/-                      -static
/Volumes/NAS1           auto_nas

/etc/auto_nas

home    -fstype=smbfs,soft smb://ericb:mypassword@NAS1/home

But I would like to remove "mypassword" from the config file and have automount use the data stored in the keychain.

Is this possible?