I am getting and error when defining a new role in powerbi using TMDL:

createOrReplace
 
   role roleName
       modelPermission: read
 
       member userName
           memberId: '203'
           memberType: activeDirectory
 
       tablePermission tableName
 
        filterExpression: 1=1

I get this error:

TMDL Format Error: Parsing error type - UnknownKeyword Detailed error - Unsupported property - memberId is not a supported property in the current context! Document - '' Line Number - 7 Line - ' memberId: '203''

If I try this code:

createOrReplace
 
   role roleName
       modelPermission: read
 
       member userName
           memberType: activeDirectory
 
       tablePermission BU
 
        filterExpression: 1=1

I get this error: The newly created External RoleMembership object in role 'roleName' for provider 'AzureAD' has no value specified for MemberID. MemberID must be specified when creating an External RoleMembership object.

I tried everything, I just cannot find the right sintaxis or I am missing something.