Automatic imported MSBuild target file which imports another one installed at the same time by NuGet

MSBuildTasks.ImportTasks.targets

<?xml version="1.0" encoding="utf-8" ?>
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <!-- NuGet Package Manager inserts MSBuildTasks.ImportTasks.targets below Microsoft.CSharp.targets
  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
  <Import Project="..\..\packages\MSBuildTasks.ImportTasks.x.x.x.x\build\MSBuildTasks.ImportTasks.targets" Condition="Exists('..\..\packages\MSBuildTasks.ImportTasks.x.x.x.x\build\MSBuildTasks.ImportTasks.targets')" />
  -->
  <ItemGroup >
    <PreviousNuPkgFile Include="$(ProjectDir)$(OutDir)*.nupkg" />
    <NuSpecFile Include="$(ProjectDir)*.nuspec" />
  </ItemGroup>
  
  <Target Name="CleanNuPkgFile"
          BeforeTargets="BeforeClean;BeforeBuild"
          Condition=" '$(CreatesNuGetPackage)' == 'true' and '@(PreviousNuPkgFile)' != '' ">
    <Delete Files="@(PreviousNuPkgFile)"/>
  </Target>
  
  <Target Name="NuSpecProject"
          BeforeTargets="BeforeBuild"
          Condition=" '$(CreatesNuGetPackage)' == 'true' and '@(NuSpecFile)' == '' ">
    <Exec WorkingDirectory="$(ProjectDir)"
          Command="&quot;$(NuGetExe)&quot; spec" />
    <Error Text="Add .nuspec file to the project and edit it." />
  </Target>

  <Target Name="NuGetPack"
          AfterTargets="AfterBuild"
          Condition=" '$(CreatesNuGetPackage)' == 'true' and '@(NuSpecFile)' != '' ">
    <CallTarget Targets="NuGetPackProject"
                Condition=" '$(NuGetPacksProject)' == 'true'  and '$(NuGetPacksForTool)' == 'false' " />
    <CallTarget Targets="NuGetPackTool"
                Condition=" '$(NuGetPacksProject)' == 'true'  and '$(NuGetPacksForTool)' == 'true' " />
    <CallTarget Targets="NuGetPackNuSpec"
                Condition=" '$(NuGetPacksProject)' == 'false' " />
  </Target>
  
  <Target Name="NuGetPackProject">
    <Exec WorkingDirectory="$(ProjectDir)"
          Command="&quot;$(NuGetExe)&quot; pack -Prop Configuration=$(Configuration) -OutputDirectory &quot;bin\$(Configuration)&quot;" />
  </Target>
  <Target Name="NuGetPackTool">
    <Exec WorkingDirectory="$(ProjectDir)"
          Command="&quot;$(NuGetExe)&quot; pack -Tool -Prop Configuration=$(Configuration) -OutputDirectory &quot;bin\$(Configuration)&quot;" />
  </Target>
  <Target Name="NuGetPackNuSpec">
    <Exec WorkingDirectory="$(ProjectDir)"
          Command="&quot;$(NuGetExe)&quot; pack $(ProjectName).nuspec -Prop Configuration=$(Configuration) -OutputDirectory &quot;bin\$(Configuration)&quot;" />
  </Target>
  
  <Target Name="DeployNuPkgFile"
          AfterTargets="NuGetPack"
          Condition=" '$(CreatesNuGetPackage)' == 'true' and '$(Configuration)' == 'Release' ">
    <ItemGroup >
      <DeployingNuPkgFile Include="$(OutDir)*.nupkg" />
    </ItemGroup>
    <Error Condition=" '@(DeployingNuPkgFile)' == '' "
           Text="Build .nuspec file correctly." />
    <Error Condition=" '@(DeployingNuPkgFile)' != '' and  Exists('$(NuGetDeploy)\%(DeployingNuPkgFile.Filename)%(DeployingNuPkgFile.Extension)') "
           Text="Update .nuspec file version." />
    <Copy Condition=" '@(DeployingNuPkgFile)' != '' "
          SourceFiles="@(DeployingNuPkgFile)"
          DestinationFiles="@(DeployingNuPkgFile->'$(NuGetDeploy)\%(Filename)%(Extension)')" />
  </Target>

  <Import Project="$(ImportedTask).targets" Condition="Exists('$(ImportedTask).targets')"/>
</Project>

https://github.com/tmori3y2/BlogSamples/blob/Article_20160402/NuGetPackages/MSBuildTasks/MSBuildTasks.ImportTasks/nupkg/build/MSBuildTasks.ImportTasks.targets