AWS Secrets Resource Policy Wildcard Generalization - json

Question

I am trying to generalize a resource policy for an aws secret that multiple lambdas will grab from (project based). Currently what i have below works
{
"Version" : "2012-10-17",
"Statement" : [ {
"Effect" : "Allow",
"Principal" : {
"AWS" : "arn:aws:iam::123456789999:role/lambda-a",
"AWS" : "arn:aws:iam::123456789999:role/lambda-b"
},
"Action" : "secretsmanager:*",
"Resource" : "*"
} ]
}
The problem is that I need a variable amount of lambdas. I could write in 30 or so of these but wanted to know how to use wildcards to do this efficiently.
When I try below I get the error This resource policy contains a syntax error.
{
"Version" : "2012-10-17",
"Statement" : [ {
"Effect" : "Allow",
"Principal" : {
"AWS" : "arn:aws:iam::123456789999:role/lambda-*",
},
"Action" : "secretsmanager:*",
"Resource" : "*"
} ]
}
And when I try to just eliminate the wildcard and specific path I get This resource policy contains an unsupported principal.
{
"Version" : "2012-10-17",
"Statement" : [ {
"Effect" : "Allow",
"Principal" : {
"AWS" : "arn:aws:iam::123456789999"
},
"Action" : "secretsmanager:*",
"Resource" : "*"
} ]
}
Any ideas how to do this cleanly?