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jdomingrJuan Dominguez
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Juan Dominguez
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feat(genai): add text generation samples (1) (#3256)
Create GenAI solution and add new samples for text generation: - Text generation with text - Text generation with Pdf --------- Co-authored-by: Juan Dominguez <[email protected]>
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‎genai/api/GenAI.Samples.Tests/GenAI.Samples.Tests.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFramework>net8.0</TargetFramework>
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<IsPackable>false</IsPackable>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="JUnitTestLogger" Version="1.1.0" />
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<PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.0" />
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<PackageReference Include="xunit" Version="2.9.3" />
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<PackageReference Include="xunit.runner.visualstudio" Version="3.1.5" />
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</ItemGroup>
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<ItemGroup>
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<ProjectReference Include="..\GenAI.Samples\GenAI.Samples.csproj" />
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</ItemGroup>
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</Project>

‎genai/api/GenAI.Samples.Tests/GenAIFixture.cs‎

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/*
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* Copyright 2025 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System;
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using Xunit;
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[CollectionDefinition(nameof(GenAIFixture))]
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public class GenAIFixture : ICollectionFixture<GenAIFixture>
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{
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public string ProjectId { get; }
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public GenAIFixture()
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{
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ProjectId = Environment.GetEnvironmentVariable("GOOGLE_PROJECT_ID");
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if (string.IsNullOrEmpty(ProjectId))
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{
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throw new Exception("Missing GOOGLE_PROJECT_ID environment variable.");
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}
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}
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}

‎genai/api/GenAI.Samples.Tests/TextGeneration/TextGenWithPdfTest.cs‎

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/*
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* Copyright 2025 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System.Threading.Tasks;
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using Xunit;
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[Collection(nameof(GenAIFixture))]
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public class TextGenWithPdfTest
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{
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private readonly GenAIFixture _fixture;
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private readonly TextGenWithPdf _sample;
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public TextGenWithPdfTest(GenAIFixture fixture)
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{
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_fixture = fixture;
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_sample = new TextGenWithPdf();
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}
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[Fact]
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public async Task TestTextGenWithPdf()
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{
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var response = await _sample.GenerateContent(_fixture.ProjectId);
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Assert.NotEmpty(response);
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}
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}

‎genai/api/GenAI.Samples.Tests/TextGeneration/TextGenWithTxtTest.cs‎

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/*
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* Copyright 2025 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System.Threading.Tasks;
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using Xunit;
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[Collection(nameof(GenAIFixture))]
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public class TextGenWithTxtTest
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{
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private readonly GenAIFixture _fixture;
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private readonly TextGenWithTxt _sample;
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public TextGenWithTxtTest(GenAIFixture fixture)
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{
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_fixture = fixture;
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_sample = new TextGenWithTxt();
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}
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[Fact]
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public async Task TestTextGenWithTxt()
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{
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var response = await _sample.GenerateContent(_fixture.ProjectId);
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Assert.NotEmpty(response);
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}
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}

‎genai/api/GenAI.Samples/GenAI.Samples.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFramework>net8.0</TargetFramework>
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<IsPackable>false</IsPackable>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Google.GenAI" Version="0.3.0" />
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</ItemGroup>
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</Project>

‎genai/api/GenAI.Samples/TextGeneration/TextGenWithPdf.cs‎

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/*
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* Copyright 2025 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// [START googlegenaisdk_textgen_with_pdf]
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using Google.GenAI;
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using Google.GenAI.Types;
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using System;
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using System.Collections.Generic;
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using System.Threading.Tasks;
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public class TextGenWithPdf
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{
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public async Task<string> GenerateContent(
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string projectId = "your-project-id",
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string location = "global",
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string model = "gemini-2.5-flash")
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{
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await using var client = new Client(
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project: projectId,
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location: location,
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vertexAI: true,
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httpOptions: new HttpOptions { ApiVersion = "v1" });
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string prompt = @"
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You are a highly skilled document summarization specialist.
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Your task is to provide a concise executive summary of no more than 300 words.
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Please summarize the given document for a general audience.";
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var contents = new List<Content>
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{
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new Content
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{
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Role = "user",
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Parts = new List<Part>
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{
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new Part
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{
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FileData = new FileData
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{
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FileUri = "gs://cloud-samples-data/generative-ai/pdf/1706.03762v7.pdf",
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MimeType = "application/pdf",
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}
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},
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new Part { Text = prompt }
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}
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}
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};
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GenerateContentResponse response = await client.Models.GenerateContentAsync(model: model, contents: contents);
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string responseText = response.Candidates[0].Content.Parts[0].Text;
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Console.WriteLine(responseText);
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// Example reponse:
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// This paper introduces the Transformer, a novel neural network architecture designed
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// for processing sequences, such as those found in language translation. Traditionally,
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// such tasks have relied on complex recurrent or convolutional neural networks...
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return responseText;
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}
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}
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// [END googlegenaisdk_textgen_with_pdf]

‎genai/api/GenAI.Samples/TextGeneration/TextGenWithTxt.cs‎

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/*
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* Copyright 2025 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// [START googlegenaisdk_textgen_with_txt]
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using Google.GenAI;
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using Google.GenAI.Types;
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using System;
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using System.Threading.Tasks;
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public class TextGenWithTxt
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{
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public async Task<string> GenerateContent(
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string projectId = "your-project-id",
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string location = "global",
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string model = "gemini-2.5-flash")
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{
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await using var client = new Client(
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project: projectId,
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location: location,
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vertexAI: true,
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httpOptions: new HttpOptions { ApiVersion = "v1" });
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GenerateContentResponse response = await client.Models.GenerateContentAsync(model: model, contents: "How does AI work?");
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string responseText = response.Candidates[0].Content.Parts[0].Text;
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Console.WriteLine(responseText);
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// Example reponse:
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// AI, or Artificial Intelligence, at its core, is about creating machines that can perform...
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// Here's a breakdown of how it generally works...
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return responseText;
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}
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}
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// [END googlegenaisdk_textgen_with_txt]

‎genai/api/GenAI.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 17
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VisualStudioVersion = 17.0.31903.59
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "GenAI.Samples", "GenAI.Samples\GenAI.Samples.csproj", "{4CE7122F-BB91-4CDD-AE2A-50AE6F00ECF8}"
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "GenAI.Samples.Tests", "GenAI.Samples.Tests\GenAI.Samples.Tests.csproj", "{5381F18E-8B7E-4D71-A909-C936F784AB65}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{4CE7122F-BB91-4CDD-AE2A-50AE6F00ECF8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{4CE7122F-BB91-4CDD-AE2A-50AE6F00ECF8}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{4CE7122F-BB91-4CDD-AE2A-50AE6F00ECF8}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{4CE7122F-BB91-4CDD-AE2A-50AE6F00ECF8}.Release|Any CPU.Build.0 = Release|Any CPU
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{5381F18E-8B7E-4D71-A909-C936F784AB65}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{5381F18E-8B7E-4D71-A909-C936F784AB65}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{5381F18E-8B7E-4D71-A909-C936F784AB65}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{5381F18E-8B7E-4D71-A909-C936F784AB65}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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EndGlobal

‎genai/api/runTests.ps1‎

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# Copyright 2025 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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dotnet restore --force
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dotnet test --no-restore --test-adapter-path:. --logger:junit 2>&1 | %{ "$_" }

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