Cannot generate multi-api version for billing (unsupported error in llcsharo plugin)

[markcowl]

In this configuration file:
https://github.com/markcowl/azure-powershell/blob/generation/src/Billing/readme.md

This error:

    - oai3-subset-schema-reduced doc... ($)
NOT SUPPORTED: Object with additionalProperties that's not an object/string.boolean.number : { type: array } --  FiltersTags
C:\Users\markcowl\.autorest\@microsoft.azure_autorest.csharp-v2@2.0.225\node_modules\@microsoft.azure\autorest.csharp-v2\dist\plugin-llcsharp.js - Error: Not Supported Yet.
    at SchemaDefinitionResolver.resolveTypeDeclaration (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.csharp-v2@2.0.225\node_modules\@microsoft.azure\autorest.csharp-v2\src\schema\schema-resolver.ts:93:25)
    at ModelsNamespace.resolveTypeDeclaration (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.csharp-v2@2.0.225\node_modules\@microsoft.azure\autorest.csharp-v2\src\model\namespace.ts:69:30)
    at new ModelInterfaceProperty (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.csharp-v2@2.0.225\node_modules\@microsoft.azure\autorest.csharp-v2\src\model\interface-property.ts:13:47)
    at new ModelInterface (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.csharp-v2@2.0.225\node_modules\@microsoft.azure\autorest.csharp-v2\src\model\interface.ts:91:18)
    at new ModelClass (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.csharp-v2@2.0.225\node_modules\@microsoft.azure\autorest.csharp-v2\src\model\model-class.ts:110:81)
    at ModelsNamespace.resolveTypeDeclaration (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.csharp-v2@2.0.225\node_modules\@microsoft.azure\autorest.csharp-v2\src\model\namespace.ts:79:65)
    at new ModelInterfaceProperty (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.csharp-v2@2.0.225\node_modules\@microsoft.azure\autorest.csharp-v2\src\model\interface-property.ts:13:47)
    at new ModelInterface (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.csharp-v2@2.0.225\node_modules\@microsoft.azure\autorest.csharp-v2\src\model\interface.ts:91:18)
    at new ModelClass (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.csharp-v2@2.0.225\node_modules\@microsoft.azure\autorest.csharp-v2\src\model\model-class.ts:110:81)
    at ModelsNamespace.resolveTypeDeclaration (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.csharp-v2@2.0.225\node_modules\@microsoft.azure\autorest.csharp-v2\src\model\namespace.ts:79:65)/Not Supported Yet.
PLUGIN FAILURE: Not Supported Yet. , Error: Not Supported Yet.
    at SchemaDefinitionResolver.resolveTypeDeclaration (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.csharp-v2@2.0.225\node_modules\@microsoft.azure\autorest.csharp-v2\src\schema\schema-resolver.ts:93:25)
    at ModelsNamespace.resolveTypeDeclaration (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.csharp-v2@2.0.225\node_modules\@microsoft.azure\autorest.csharp-v2\src\model\namespace.ts:69:30)
    at new ModelInterfaceProperty (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.csharp-v2@2.0.225\node_modules\@microsoft.azure\autorest.csharp-v2\src\model\interface-property.ts:13:47)
    at new ModelInterface (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.csharp-v2@2.0.225\node_modules\@microsoft.azure\autorest.csharp-v2\src\model\interface.ts:91:18)
    at new ModelClass (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.csharp-v2@2.0.225\node_modules\@microsoft.azure\autorest.csharp-v2\src\model\model-class.ts:110:81)
    at ModelsNamespace.resolveTypeDeclaration (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.csharp-v2@2.0.225\node_modules\@microsoft.azure\autorest.csharp-v2\src\model\namespace.ts:79:65)
    at new ModelInterfaceProperty (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.csharp-v2@2.0.225\node_modules\@microsoft.azure\autorest.csharp-v2\src\model\interface-property.ts:13:47)
    at new ModelInterface (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.csharp-v2@2.0.225\node_modules\@microsoft.azure\autorest.csharp-v2\src\model\interface.ts:91:18)
    at new ModelClass (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.csharp-v2@2.0.225\node_modules\@microsoft.azure\autorest.csharp-v2\src\model\model-class.ts:110:81)
    at ModelsNamespace.resolveTypeDeclaration (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.csharp-v2@2.0.225\node_modules\@microsoft.azure\autorest.csharp-v2\src\model\namespace.ts:79:65), {}
FATAL: Error: Not Supported Yet.
C:\Users\markcowl\.autorest\@microsoft.azure_autorest-core@3.0.5402\node_modules\@microsoft.azure\autorest-core\dist\lib\pipeline\pipeline.js - FAILURE {}
(node:13636) UnhandledPromiseRejectionWarning: Error: Plugin llcsharp reported failure.
    at C:\Users\markcowl\.autorest\@microsoft.azure_autorest-core@3.0.5402\node_modules\@microsoft.azure\autorest-core\dist\lib\pipeline\plugins\external.js:26:19
(node:13636) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 103)
(node:13636) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
(node:13636) UnhandledPromiseRejectionWarning: Error: Plugin llcsharp reported failure.
    at C:\Users\markcowl\.autorest\@microsoft.azure_autorest-core@3.0.5402\node_modules\@microsoft.azure\autorest-core\dist\lib\pipeline\plugins\external.js:26:19
(node:13636) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 104)
NOT SUPPORTED: Object with additionalProperties that's not an object/string.boolean.number : { type: array } --  FiltersTags
C:\Users\markcowl\.autorest\@microsoft.azure_autorest.powershell@2.0.343\node_modules\@microsoft.azure\autorest.powershell\dist\plugin-powershell.js - FAILURE  {} Error: Not Supported Yet.
    at SchemaDefinitionResolver.resolveTypeDeclaration (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.powershell@2.0.343\node_modules\@microsoft.azure\autorest.csharp-v2\src\schema\schema-resolver.ts:93:25)
    at CmdletClass.addPowershellParameters (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.powershell@2.0.343\node_modules\@microsoft.azure\autorest.powershell\cmdlet-class.ts:662:78)
    at new CmdletClass (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.powershell@2.0.343\node_modules\@microsoft.azure\autorest.powershell\cmdlet-class.ts:63:10)
    at new CmdletNamespace (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.powershell@2.0.343\node_modules\@microsoft.azure\autorest.powershell\namespaces\cmdlet.ts:24:21)
    at Project.init (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.powershell@2.0.343\node_modules\@microsoft.azure\autorest.powershell\project.ts:150:38)
PLUGIN FAILURE: Not Supported Yet. , Error: Not Supported Yet.
    at SchemaDefinitionResolver.resolveTypeDeclaration (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.powershell@2.0.343\node_modules\@microsoft.azure\autorest.csharp-v2\src\schema\schema-resolver.ts:93:25)
    at CmdletClass.addPowershellParameters (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.powershell@2.0.343\node_modules\@microsoft.azure\autorest.powershell\cmdlet-class.ts:662:78)
    at new CmdletClass (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.powershell@2.0.343\node_modules\@microsoft.azure\autorest.powershell\cmdlet-class.ts:63:10)
    at new CmdletNamespace (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.powershell@2.0.343\node_modules\@microsoft.azure\autorest.powershell\namespaces\cmdlet.ts:24:21)
    at Project.init (C:\Users\markcowl\.autorest\@microsoft.azure_autorest.powershell@2.0.343\node_modules\@microsoft.azure\autorest.powershell\project.ts:150:38), {}
FATAL: Error: Not Supported Yet.
C:\Users\markcowl\.autorest\@microsoft.azure_autorest-core@3.0.5402\node_modules\@microsoft.azure\autorest-core\dist\lib\pipeline\pipeline.js - FAILURE {}
Process() cancelled due to exception : Plugin llcsharp reported failure. / Error: Plugin llcsharp reported failure.
    at C:\Users\markcowl\.autorest\@microsoft.azure_autorest-core@3.0.5402\node_modules\@microsoft.azure\autorest-core\dist\lib\pipeline\plugins\external.js:26:19
  Error: Plugin llcsharp reported failure.