Add api build subcommand -- WIP

llama_toolchain/cli/api/api.py

@@ -0,0 +1,26 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+import argparse
+
+from llama_toolchain.cli.subcommand import Subcommand
+
+from .build import ApiBuild
+
+
+class ApiParser(Subcommand):
+    def __init__(self, subparsers: argparse._SubParsersAction):
+        super().__init__()
+        self.parser = subparsers.add_parser(
+            "api",
+            prog="llama api",
+            description="Operate on llama stack API providers",
+        )
+
+        subparsers = self.parser.add_subparsers(title="api_subcommands")
+
+        # Add sub-commands
+        ApiBuild.create(subparsers)