Automated snippet conversion by scripts

These changes are purely mechanical to differentiate them from manual
fixes/adjustments made in the next commit.
This results in broken code as some snippets contain errors.

Made in four steps:
1. Run ./migrate-snippet.py that converts `.md` files to code files
   and perhaps adds missing lines under `// @hide` comments.
2. Sort Java imports.
3. Remove old `.md` files.
4. Run ./generate.md to produce `*/generated/*.md` files.

qdrant-landing/content/documentation/headless/snippets/query-points/exclude-fields/csharp.cs

@@ -0,0 +1,20 @@
+using Qdrant.Client;
+using Qdrant.Client.Grpc;
+
+public class Snippet
+{
+	public static async Task Run()
+	{
+		var client = new QdrantClient("localhost", 6334);
+
+		await client.QueryAsync(
+			collectionName: "{collection_name}",
+			query: new float[] { 0.2f, 0.1f, 0.9f, 0.7f },
+			payloadSelector: new WithPayloadSelector
+			{
+				Exclude = new PayloadExcludeSelector { Fields = { new string[] { "city" } } }
+			},
+			limit: 3
+		);
+	}
+}

qdrant-landing/content/documentation/headless/snippets/query-points/exclude-fields/generated/java.md

@@ -1,12 +1,11 @@
 ```java
-import java.util.List;
+import static io.qdrant.client.QueryFactory.nearest;
+import static io.qdrant.client.WithPayloadSelectorFactory.exclude;
 
 import io.qdrant.client.QdrantClient;
 import io.qdrant.client.QdrantGrpcClient;
 import io.qdrant.client.grpc.Points.QueryPoints;
-
-import static io.qdrant.client.QueryFactory.nearest;
-import static io.qdrant.client.WithPayloadSelectorFactory.exclude;
+import java.util.List;
 
 QdrantClient client =
     new QdrantClient(QdrantGrpcClient.newBuilder("localhost", 6334, false).build());

qdrant-landing/content/documentation/headless/snippets/query-points/exclude-fields/go.go

@@ -0,0 +1,20 @@
+package snippet
+
+import (
+	"context"
+
+	"github.com/qdrant/go-client/qdrant"
+)
+
+func Main() {
+	client, err := qdrant.NewClient(&qdrant.Config{
+		Host: "localhost",
+		Port: 6334,
+	})
+
+	client.Query(context.Background(), &qdrant.QueryPoints{
+		CollectionName: "{collection_name}",
+		Query:          qdrant.NewQuery(0.2, 0.1, 0.9, 0.7),
+		WithPayload:    qdrant.NewWithPayloadExclude("city"),
+	})
+}

qdrant-landing/content/documentation/headless/snippets/query-points/exclude-fields/java.java

@@ -0,0 +1,25 @@
+package com.example.snippets_amalgamation;
+
+import static io.qdrant.client.QueryFactory.nearest;
+import static io.qdrant.client.WithPayloadSelectorFactory.exclude;
+
+import io.qdrant.client.QdrantClient;
+import io.qdrant.client.QdrantGrpcClient;
+import io.qdrant.client.grpc.Points.QueryPoints;
+import java.util.List;
+
+public class Snippet {
+        public static void run() throws Exception {
+                QdrantClient client =
+                    new QdrantClient(QdrantGrpcClient.newBuilder("localhost", 6334, false).build());
+
+                client.queryAsync(
+                        QueryPoints.newBuilder()
+                                .setCollectionName("{collection_name}")
+                                .setQuery(nearest(0.2f, 0.1f, 0.9f, 0.7f))
+                                .setWithPayload(exclude(List.of("city")))
+                                .setLimit(3)
+                                .build())
+                        .get();
+        }
+}

qdrant-landing/content/documentation/headless/snippets/query-points/exclude-fields/python.py

@@ -0,0 +1,11 @@
+from qdrant_client import QdrantClient, models
+
+client = QdrantClient(url="http://localhost:6333")
+
+client.query_points(
+    collection_name="{collection_name}",
+    query=[0.2, 0.1, 0.9, 0.7],
+    with_payload=models.PayloadSelectorExclude(
+        exclude=["city"],
+    ),
+)

qdrant-landing/content/documentation/headless/snippets/query-points/exclude-fields/rust.rs

@@ -0,0 +1,18 @@
+use qdrant_client::qdrant::{with_payload_selector::SelectorOptions, QueryPointsBuilder};
+use qdrant_client::Qdrant;
+
+pub async fn main() -> anyhow::Result<()> {
+    let client = Qdrant::from_url("http://localhost:6334").build()?;
+
+    client
+        .query(
+            QueryPointsBuilder::new("{collection_name}")
+                .query(vec![0.2, 0.1, 0.9, 0.7])
+                .limit(3)
+                .with_payload(SelectorOptions::Exclude(vec!["city".to_string()].into()))
+                .with_vectors(true),
+        )
+        .await?;
+
+    Ok(())
+}

qdrant-landing/content/documentation/headless/snippets/query-points/exclude-fields/typescript.ts

@@ -0,0 +1,10 @@
+import { QdrantClient } from "@qdrant/js-client-rest";
+
+const client = new QdrantClient({ host: "localhost", port: 6333 });
+
+client.query("{collection_name}", {
+  query: [0.2, 0.1, 0.9, 0.7],
+  with_payload: {
+    exclude: ["city"],
+  },
+});