cpp2: mstch_cpp2:py3cpp src/module.thrift cpp2_empty: mstch_cpp2:py3cpp src/empty.thrift py3: mstch_py3:py3cpp,intercompatible src/module.thrift py3_empty: mstch_py3:py3cpp src/empty.thrift python_empty: mstch_python src/empty.thrift python_capi: mstch_python_capi src/module.thrift python_capi_empty: mstch_python_capi src/empty.thrift python: mstch_python:auto_migrate,base_library_package=fbcode.thrift.python,import_static src/module.thrift py3_auto_migrate: mstch_py3:auto_migrate src/module.thrift python_experimental_generate_mutable_types: mstch_python:experimental_generate_mutable_types:auto_migrate,base_library_package=fbcode.thrift.python,import_static src/module.thrift