adding milvus vector store example

examples/milvus-vectorstore-example/.gitignore

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+volumes

examples/milvus-vectorstore-example/README.md

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+# Milvus vector store with local embeddings 
+
+Dependencies:
+- [Text Embeddings Inference](https://github.com/huggingface/text-embeddings-inference)
+- [Ollama](https://ollama.ai/) 
+
+```shell
+# start milvus
+docker-compose up -d
+
+# start mistral on ollama
+ollama run mistral
+
+#start embedding server
+text-embeddings-router --model-id thenlper/gte-large --port 5500
+
+```

examples/milvus-vectorstore-example/Taskfile.yml

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+# https://taskfile.dev
+
+version: '3'
+
+silent: true
+
+tasks:
+  default:
+    cmds:
+      - task --list-all
+  run:text-embeddings-inference:
+    cmds:
+      - text-embeddings-router --model-id thenlper/gte-large --port 5500

examples/milvus-vectorstore-example/docker-compose.yml

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+version: "3.5"
+
+services:
+  etcd:
+    container_name: milvus-etcd
+    image: quay.io/coreos/etcd:v3.5.0
+    environment:
+      - ETCD_AUTO_COMPACTION_MODE=revision
+      - ETCD_AUTO_COMPACTION_RETENTION=1000
+      - ETCD_QUOTA_BACKEND_BYTES=4294967296
+    volumes:
+      - ${DOCKER_VOLUME_DIRECTORY:-.}/volumes/etcd:/etcd
+    command: etcd -advertise-client-urls=http://127.0.0.1:2379 -listen-client-urls http://0.0.0.0:2379 --data-dir /etcd
+
+  minio:
+    container_name: milvus-minio
+    image: minio/minio:RELEASE.2020-12-03T00-03-10Z
+    environment:
+      MINIO_ACCESS_KEY: minioadmin
+      MINIO_SECRET_KEY: minioadmin
+    volumes:
+      - ${DOCKER_VOLUME_DIRECTORY:-.}/volumes/minio:/minio_data
+    command: minio server /minio_data
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
+      interval: 30s
+      timeout: 20s
+      retries: 3
+
+  standalone:
+    container_name: milvus-standalone
+    image: milvusdb/milvus
+    command: ["milvus", "run", "standalone"]
+    environment:
+      ETCD_ENDPOINTS: etcd:2379
+      MINIO_ADDRESS: minio:9000
+    volumes:
+      - ${DOCKER_VOLUME_DIRECTORY:-.}/volumes/milvus:/var/lib/milvus
+    ports:
+      - "19530:19530"
+    depends_on:
+      - "etcd"
+      - "minio"
+
+networks:
+  default:
+    name: milvus

examples/milvus-vectorstore-example/go.mod

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+module github.com/tmc/langchaingo/examples/ollama-milvus-vectorstore-example
+
+go 1.20
+
+// NOTE: remove the following line to use the official (rather than local development) version
+replace github.com/tmc/langchaingo => ../..
+
+require (
+	github.com/milvus-io/milvus-sdk-go/v2 v2.3.2
+	github.com/tmc/langchaingo v0.0.0-00010101000000-000000000000
+)
+
+require (
+	github.com/cockroachdb/errors v1.9.1 // indirect
+	github.com/cockroachdb/logtags v0.0.0-20211118104740-dabe8e521a4f // indirect
+	github.com/cockroachdb/redact v1.1.3 // indirect
+	github.com/dlclark/regexp2 v1.8.1 // indirect
+	github.com/gage-technologies/tei-go v0.2.0 // indirect
+	github.com/getsentry/sentry-go v0.12.0 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/google/uuid v1.3.0 // indirect
+	github.com/grpc-ecosystem/go-grpc-middleware v1.3.0 // indirect
+	github.com/kr/pretty v0.3.0 // indirect
+	github.com/kr/text v0.2.0 // indirect
+	github.com/milvus-io/milvus-proto/go-api/v2 v2.3.2 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/pkoukk/tiktoken-go v0.1.2 // indirect
+	github.com/rogpeppe/go-internal v1.11.0 // indirect
+	github.com/sourcegraph/conc v0.3.0 // indirect
+	github.com/tidwall/gjson v1.14.4 // indirect
+	github.com/tidwall/match v1.1.1 // indirect
+	github.com/tidwall/pretty v1.2.0 // indirect
+	go.uber.org/atomic v1.7.0 // indirect
+	go.uber.org/multierr v1.9.0 // indirect
+	golang.org/x/net v0.17.0 // indirect
+	golang.org/x/sys v0.13.0 // indirect
+	golang.org/x/text v0.13.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20230530153820-e85fd2cbaebc // indirect
+	google.golang.org/grpc v1.57.1 // indirect
+	google.golang.org/protobuf v1.31.0 // indirect
+)