Netplan Example.

netplan-example.yaml

network:
  wifis:
    YOUR_WIRELESS_INTERFACE:
      dhcp4: yes
      dhcp6: yes
      access-points:
        "YOUR_SSID":
          password: "YOUR_PASSWORD"
        "YOUR_SSID":
          auth:
            key-management: eap
            password: "YOUR_PASSWORD"
            identity: "YOUR_EMAIL"
  ethernets:
    USB_TETHER_INTERFACE:
      dhcp4: yes
      dhcp6: yes
  version: 2
  renderer: networkd

# Apply your config with this command :
# $ sudo netplan apply your_config.yaml

netplan-ip-static-example.yaml

network:
  wifis:
    YOUR_WIRELESS_INTERFACE:
      dhcp4: no
      dhcp6: no
      addresses:
      - x.x.x.x/24
      routes:
      - to: default
        via: x.x.x.x
      access-points:
        "YOUR_SSID":
          password: "YOUR_PASSWORD"
        "YOUR_SSID":
          auth:
            key-management: eap
            password: "YOUR_PASSWORD"
            identity: "YOUR_EMAIL"
  version: 2
  renderer: networkd