Getting syntax errors trying to add policies option to cognito-idp create-user-pool

[TWDBrob]

I had a call to create a user pool which was working as expected:

aws cognito-idp create-user-pool --pool-name my-user-pool --username-attributes email --admin-create-user-config AllowAdminCreateUserOnly=true

I wanted to create a user pool which allows EMAIL_OTP auth flow and so I added a --policies option and it's giving me a syntax error:

Parameter validation failed:
Unknown parameter in Policies: "SignInPolicy", must be one of: PasswordPolicy

Here's the command I tried. Comparing this to the docs, I can't see anything wrong with it. Are the docs wrong?

aws cognito-idp create-user-pool --pool-name my-user-pool --username-attributes email --admin-create-user-config AllowAdminCreateUserOnly=true --policies "SignInPolicy={AllowedFirstAuthFactors=[PASSWORD,EMAIL_OTP]}"

[TWDBrob]

Upgrading to 2.33.7 did the trick