-mfa switch doesn't work on vault read

[bensojona]

The MFA TOTP docs suggest the below command should work.

vault read -mfa my_totp:146378 secret/foo

However, I get the following...

flag provided but not defined: -mfa

Trying to figure out a way to populate the MFA header for the API call (e.g. --header "X-Vault-MFA:my_totp:695452" ) but it doesn't seem to be working.