Add graphrag (#1793)

### What problem does this PR solve?

#1594

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

agent/test/client.py

@@ -0,0 +1,48 @@
+#
+#  Copyright 2024 The InfiniFlow Authors. All Rights Reserved.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+import argparse
+import os
+from functools import partial
+from agent.canvas import Canvas
+from agent.settings import DEBUG
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser()
+    dsl_default_path = os.path.join(
+        os.path.dirname(os.path.realpath(__file__)),
+        "dsl_examples",
+        "retrieval_and_generate.json",
+    )
+    parser.add_argument('-s', '--dsl', default=dsl_default_path, help="input dsl", action='store', required=True)
+    parser.add_argument('-t', '--tenant_id', default=False, help="Tenant ID", action='store', required=True)
+    parser.add_argument('-m', '--stream', default=False, help="Stream output", action='store_true', required=False)
+    args = parser.parse_args()
+
+    canvas = Canvas(open(args.dsl, "r").read(), args.tenant_id)
+    while True:
+        ans = canvas.run(stream=args.stream)
+        print("==================== Bot =====================\n>    ", end='')
+        if args.stream and isinstance(ans, partial):
+            cont = ""
+            for an in ans():
+                print(an["content"][len(cont):], end='', flush=True)
+                cont = an["content"]
+        else:
+            print(ans["content"])
+
+        if DEBUG: print(canvas.path)
+        question = input("\n==================== User =====================\n> ")
+        canvas.add_user_input(question)