AnyToolChoice  
    class AnyToolChoice
The model must request at least one tool (no text is generated). For example, {"any" : {}}. For more information, see Call a tool with the Converse API in the Amazon Bedrock User Guide.
The model must request at least one tool (no text is generated). For example, {"any" : {}}. For more information, see Call a tool with the Converse API in the Amazon Bedrock User Guide.