csharp-sdk/tests/ModelContextProtocol.TestSseServer/Program.cs

476 lines
No EOL
25 KiB
C#

using Microsoft.AspNetCore.Connections;
using ModelContextProtocol.Protocol;
using ModelContextProtocol.Server;
using Serilog;
using System.Diagnostics;
using System.Text;
using System.Text.Json;
#pragma warning disable CS1998 // Async method lacks 'await' operators and will run synchronously
namespace ModelContextProtocol.TestSseServer;
public class Program
{
private static void ConfigureSerilog(ILoggingBuilder loggingBuilder)
{
Log.Logger = new LoggerConfiguration()
.MinimumLevel.Verbose() // Capture all log levels
.WriteTo.File(Path.Combine(AppContext.BaseDirectory, "logs", "TestServer_.log"),
rollingInterval: RollingInterval.Day,
outputTemplate: "{Timestamp:yyyy-MM-dd HH:mm:ss.fff zzz} [{Level:u3}] {Message:lj}{NewLine}{Exception}")
.CreateLogger();
loggingBuilder.AddSerilog();
}
public static Task Main(string[] args) => MainAsync(args);
private static void ConfigureOptions(McpServerOptions options)
{
options.Capabilities = new ServerCapabilities
{
Tools = new(),
Resources = new(),
Prompts = new(),
};
options.ServerInstructions = "This is a test server with only stub functionality";
Console.WriteLine("Registering handlers.");
#region Helped method
static CreateMessageRequestParams CreateRequestSamplingParams(string context, string uri, int maxTokens = 100)
{
return new CreateMessageRequestParams
{
Messages = [new SamplingMessage
{
Role = Role.User,
Content = [new TextContentBlock { Text = $"Resource {uri} context: {context}" }],
}],
SystemPrompt = "You are a helpful test server.",
MaxTokens = maxTokens,
Temperature = 0.7f,
IncludeContext = ContextInclusion.ThisServer
};
}
#endregion
List<Resource> resources = [];
List<ResourceContents> resourceContents = [];
for (int i = 0; i < 100; ++i)
{
string uri = $"test://static/resource/{i + 1}";
if (i % 2 == 0)
{
resources.Add(new Resource
{
Uri = uri,
Name = $"Resource {i + 1}",
MimeType = "text/plain"
});
resourceContents.Add(new TextResourceContents
{
Uri = uri,
MimeType = "text/plain",
Text = $"Resource {i + 1}: This is a plaintext resource"
});
}
else
{
var buffer = Encoding.UTF8.GetBytes($"Resource {i + 1}: This is a base64 blob");
resources.Add(new Resource
{
Uri = uri,
Name = $"Resource {i + 1}",
MimeType = "application/octet-stream"
});
resourceContents.Add(BlobResourceContents.FromBytes(buffer, uri, "application/octet-stream"));
}
}
const int pageSize = 10;
options.Handlers = new()
{
ListToolsHandler = async (request, cancellationToken) =>
{
return new ListToolsResult
{
Tools =
[
new Tool
{
Name = "echo",
Description = "Echoes the input back to the client.",
InputSchema = JsonElement.Parse("""
{
"type": "object",
"properties": {
"message": {
"type": "string",
"description": "The input to echo back."
}
},
"required": ["message"]
}
"""),
},
new Tool
{
Name = "echoSessionId",
Description = "Echoes the session id back to the client.",
InputSchema = JsonElement.Parse("""
{
"type": "object"
}
"""),
},
new Tool
{
Name = "sampleLLM",
Description = "Samples from an LLM using MCP's sampling feature.",
InputSchema = JsonElement.Parse("""
{
"type": "object",
"properties": {
"prompt": {
"type": "string",
"description": "The prompt to send to the LLM"
},
"maxTokens": {
"type": "number",
"description": "Maximum number of tokens to generate"
}
},
"required": ["prompt", "maxTokens"]
}
"""),
},
new Tool
{
Name = "longRunning",
Description = "Simulates a long-running operation that supports task-based execution.",
InputSchema = JsonElement.Parse("""
{
"type": "object",
"properties": {
"durationMs": {
"type": "number",
"description": "Duration of the operation in milliseconds"
}
},
"required": ["durationMs"]
}
"""),
Execution = new ToolExecution
{
TaskSupport = ToolTaskSupport.Optional
}
}
]
};
},
CallToolHandler = async (request, cancellationToken) =>
{
if (request.Params is null)
{
throw new McpProtocolException("Missing required parameter 'name'", McpErrorCode.InvalidParams);
}
if (request.Params.Name == "echo")
{
if (request.Params.Arguments is null || !request.Params.Arguments.TryGetValue("message", out var message))
{
throw new McpProtocolException("Missing required argument 'message'", McpErrorCode.InvalidParams);
}
return new CallToolResult
{
Content = [new TextContentBlock { Text = $"Echo: {message}" }]
};
}
else if (request.Params.Name == "echoSessionId")
{
return new CallToolResult
{
Content = [new TextContentBlock { Text = request.Server.SessionId ?? string.Empty }]
};
}
else if (request.Params.Name == "sampleLLM")
{
if (request.Params.Arguments is null ||
!request.Params.Arguments.TryGetValue("prompt", out var prompt) ||
!request.Params.Arguments.TryGetValue("maxTokens", out var maxTokens))
{
throw new McpProtocolException("Missing required arguments 'prompt' and 'maxTokens'", McpErrorCode.InvalidParams);
}
var sampleResult = await request.Server.SampleAsync(CreateRequestSamplingParams(prompt.ToString(), "sampleLLM", Convert.ToInt32(maxTokens.ToString())),
cancellationToken: cancellationToken);
return new CallToolResult
{
Content = [new TextContentBlock { Text = $"LLM sampling result: {sampleResult.Content.OfType<TextContentBlock>().FirstOrDefault()?.Text}" }]
};
}
else if (request.Params.Name == "longRunning")
{
if (request.Params.Arguments is null || !request.Params.Arguments.TryGetValue("durationMs", out var durationMsValue))
{
throw new McpProtocolException("Missing required argument 'durationMs'", McpErrorCode.InvalidParams);
}
int durationMs = Convert.ToInt32(durationMsValue.ToString());
await Task.Delay(durationMs, cancellationToken);
return new CallToolResult
{
Content = [new TextContentBlock { Text = $"Long-running operation completed after {durationMs}ms" }]
};
}
else
{
throw new McpProtocolException($"Unknown tool: '{request.Params.Name}'", McpErrorCode.InvalidParams);
}
},
ListResourceTemplatesHandler = async (request, cancellationToken) =>
{
return new ListResourceTemplatesResult
{
ResourceTemplates = [
new ResourceTemplate
{
UriTemplate = "test://dynamic/resource/{id}",
Name = "Dynamic Resource",
}
]
};
},
ListResourcesHandler = async (request, cancellationToken) =>
{
int startIndex = 0;
var requestParams = request.Params ?? new();
if (requestParams.Cursor is not null)
{
try
{
var startIndexAsString = Encoding.UTF8.GetString(Convert.FromBase64String(requestParams.Cursor));
startIndex = Convert.ToInt32(startIndexAsString);
}
catch (Exception e)
{
throw new McpProtocolException($"Invalid cursor: '{requestParams.Cursor}'", e, McpErrorCode.InvalidParams);
}
}
int endIndex = Math.Min(startIndex + pageSize, resources.Count);
string? nextCursor = null;
if (endIndex < resources.Count)
{
nextCursor = Convert.ToBase64String(Encoding.UTF8.GetBytes(endIndex.ToString()));
}
return new ListResourcesResult
{
NextCursor = nextCursor,
Resources = resources.GetRange(startIndex, endIndex - startIndex)
};
},
ReadResourceHandler = async (request, cancellationToken) =>
{
if (request.Params.Uri is null)
{
throw new McpProtocolException("Missing required argument 'uri'", McpErrorCode.InvalidParams);
}
if (request.Params.Uri.StartsWith("test://dynamic/resource/"))
{
var id = request.Params.Uri.Split('/').LastOrDefault();
if (string.IsNullOrEmpty(id))
{
throw new McpProtocolException($"Invalid resource URI: '{request.Params.Uri}'", McpErrorCode.InvalidParams);
}
return new ReadResourceResult
{
Contents = [
new TextResourceContents
{
Uri = request.Params.Uri,
MimeType = "text/plain",
Text = $"Dynamic resource {id}: This is a plaintext resource"
}
]
};
}
ResourceContents? contents = resourceContents.FirstOrDefault(r => r.Uri == request.Params.Uri) ??
throw new McpProtocolException($"Resource not found: '{request.Params.Uri}'", McpErrorCode.ResourceNotFound);
return new ReadResourceResult
{
Contents = [contents]
};
},
ListPromptsHandler = async (request, cancellationToken) =>
{
return new ListPromptsResult
{
Prompts = [
new Prompt
{
Name = "simple_prompt",
Description = "A prompt without arguments"
},
new Prompt
{
Name = "complex_prompt",
Description = "A prompt with arguments",
Arguments =
[
new PromptArgument
{
Name = "temperature",
Description = "Temperature setting",
Required = true
},
new PromptArgument
{
Name = "style",
Description = "Output style",
Required = false
}
],
}
]
};
},
GetPromptHandler = async (request, cancellationToken) =>
{
if (request.Params is null)
{
throw new McpProtocolException("Missing required parameter 'name'", McpErrorCode.InvalidParams);
}
List<PromptMessage> messages = [];
if (request.Params.Name == "simple_prompt")
{
messages.Add(new PromptMessage
{
Role = Role.User,
Content = new TextContentBlock { Text = "This is a simple prompt without arguments." },
});
}
else if (request.Params.Name == "complex_prompt")
{
string temperature = request.Params.Arguments?["temperature"].ToString() ?? "unknown";
string style = request.Params.Arguments?["style"].ToString() ?? "unknown";
messages.Add(new PromptMessage
{
Role = Role.User,
Content = new TextContentBlock { Text = $"This is a complex prompt with arguments: temperature={temperature}, style={style}" },
});
messages.Add(new PromptMessage
{
Role = Role.User,
Content = new TextContentBlock { Text = "I understand. You've provided a complex prompt with temperature and style arguments. How would you like me to proceed?" },
});
messages.Add(new PromptMessage
{
Role = Role.User,
Content = new ImageContentBlock
{
Data = System.Text.Encoding.UTF8.GetBytes(MCP_TINY_IMAGE),
MimeType = "image/png"
}
});
}
else
{
throw new McpProtocolException($"Unknown prompt: {request.Params.Name}", McpErrorCode.InvalidParams);
}
return new GetPromptResult
{
Messages = messages
};
},
};
}
private static void HandleStatelessMcp(IApplicationBuilder app)
{
var serviceCollection = new ServiceCollection();
serviceCollection.AddLogging();
serviceCollection.AddSingleton(app.ApplicationServices.GetRequiredService<ILoggerFactory>());
serviceCollection.AddSingleton(app.ApplicationServices.GetRequiredService<IHostApplicationLifetime>());
serviceCollection.AddSingleton(app.ApplicationServices.GetRequiredService<DiagnosticListener>());
serviceCollection.AddRoutingCore();
serviceCollection.AddMcpServer(ConfigureOptions).WithHttpTransport(options => options.Stateless = true);
var appBuilder = new ApplicationBuilder(serviceCollection.BuildServiceProvider());
appBuilder.UseRouting();
appBuilder.UseEndpoints(innerEndpoints =>
{
innerEndpoints.MapMcp("/stateless");
});
app.Run(appBuilder.Build());
}
public static async Task MainAsync(string[] args, ILoggerProvider? loggerProvider = null, IConnectionListenerFactory? kestrelTransport = null, CancellationToken cancellationToken = default)
{
Console.WriteLine("Starting server...");
var builder = WebApplication.CreateEmptyBuilder(new()
{
Args = args,
});
if (kestrelTransport is null)
{
int port = args.Length > 0 && uint.TryParse(args[0], out var parsedPort) ? (int)parsedPort : 3001;
builder.WebHost.ConfigureKestrel(options =>
{
options.ListenLocalhost(port);
});
}
else
{
// Add passed-in transport before calling UseKestrelCore() to avoid the SocketsHttpHandler getting added.
builder.Services.AddSingleton(kestrelTransport);
}
builder.WebHost.UseKestrelCore();
builder.Services.AddLogging();
builder.Services.AddRoutingCore();
builder.Logging.AddConsole();
ConfigureSerilog(builder.Logging);
if (loggerProvider is not null)
{
builder.Logging.AddProvider(loggerProvider);
}
builder.Services.AddMcpServer(ConfigureOptions)
.WithHttpTransport();
var app = builder.Build();
// Handle the /stateless endpoint if no other endpoints have been matched by the call to UseRouting above.
HandleStatelessMcp(app);
app.MapMcp();
await app.RunAsync(cancellationToken);
}
const string MCP_TINY_IMAGE =
"iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAKsGlDQ1BJQ0MgUHJvZmlsZQAASImVlwdUU+kSgOfe9JDQEiIgJfQmSCeAlBBaAAXpYCMkAUKJMRBU7MriClZURLCs6KqIgo0idizYFsWC3QVZBNR1sWDDlXeBQ9jdd9575805c+a7c+efmf+e/z9nLgCdKZDJMlF1gCxpjjwyyI8dn5DIJvUABRiY0kBdIMyWcSMiwgCTUft3+dgGyJC9YzuU69/f/1fREImzhQBIBMbJomxhFsbHMe0TyuQ5ALg9mN9kbo5siK9gzJRjDWL8ZIhTR7hviJOHGY8fjomO5GGsDUCmCQTyVACaKeZn5wpTsTw0f4ztpSKJFGPsGbyzsmaLMMbqgiUWI8N4KD8n+S95Uv+WM1mZUyBIVfLIXoaF7C/JlmUK5v+fn+N/S1amYrSGOaa0NHlwJGaxvpAHGbNDlSxNnhI+yhLRcPwwpymCY0ZZmM1LHGWRwD9UuTZzStgop0gC+co8OfzoURZnB0SNsnx2pLJWipzHHWWBfKyuIiNG6U8T85X589Ki40Y5VxI7ZZSzM6JCx2J4Sr9cEansXywN8hurG6jce1b2X/Yr4SvX5qRFByv3LhjrXyzljuXMjlf2JhL7B4zFxCjjZTl+ylqyzAhlvDgzSOnPzo1Srs3BDuTY2gjlN0wXhESMMoRBELAhBjIhB+QggECQgBTEOeJ5Q2cUeLNl8+WS1LQcNhe7ZWI2Xyq0m8B2tHd0Bhi6syNH4j1r+C4irGtjvhWVAF4nBgcHT475Qm4BHEkCoNaO+SxnAKh3A1w5JVTIc0d8Q9cJCEAFNWCCDhiACViCLTiCK3iCLwRACIRDNCTATBBCGmRhnc+FhbAMCqAI1sNmKIOdsBv2wyE4CvVwCs7DZbgOt+AePIZ26IJX0AcfYQBBEBJCRxiIDmKImCE2iCPCQbyRACQMiUQSkCQkFZEiCmQhsgIpQoqRMmQXUokcQU4g55GrSCvyEOlAepF3yFcUh9JQJqqPmqMTUQ7KRUPRaHQGmorOQfPQfHQtWopWoAfROvQ8eh29h7ajr9B+HOBUcCycEc4Wx8HxcOG4RFwKTo5bjCvEleAqcNW4Rlwz7g6uHfca9wVPxDPwbLwt3hMfjI/BC/Fz8Ivxq/Fl+P34OvxF/B18B74P/51AJ+gRbAgeBD4hnpBKmEsoIJQQ9hJqCZcI9whdhI9EIpFFtCC6EYOJCcR04gLiauJ2Yg3xHLGV2EnsJ5FIOiQbkhcpnCQg5ZAKSFtJB0lnSbdJXaTPZBWyIdmRHEhOJEvJy8kl5APkM+Tb5G7yAEWdYkbxoIRTRJT5lHWUPZRGyk1KF2WAqkG1oHpRo6np1GXUUmo19RL1CfW9ioqKsYq7ylQVicpSlVKVwypXVDpUvtA0adY0Hm06TUFbS9tHO0d7SHtPp9PN6b70RHoOfS29kn6B/oz+WZWhaqfKVxWpLlEtV61Tva36Ro2iZqbGVZuplqdWonZM7abaa3WKurk6T12gvli9XP2E+n31fg2GhoNGuEaWxmqNAxpXNXo0SZrmmgGaIs18zd2aFzQ7GTiGCYPHEDJWMPYwLjG6mESmBZPPTGcWMQ8xW5h9WppazlqxWvO0yrVOa7WzcCxzFp+VyVrHOspqY30dpz+OO048btW46nG3x33SHq/tqy3WLtSu0b6n/VWHrROgk6GzQade56kuXtdad6ruXN0dupd0X49njvccLxxfOP7o+Ed6qJ61XqTeAr3dejf0+vUN9IP0Zfpb9S/ovzZgGfgapBtsMjhj0GvIMPQ2lBhuMjxr+JKtxeayM9ml7IvsPiM9o2AjhdEuoxajAWML4xjj5cY1xk9NqCYckxSTTSZNJn2mhqaTTReaVpk+MqOYcczSzLaYNZt9MrcwjzNfaV5v3mOhbcG3yLOosnhiSbf0sZxjWWF514poxbHKsNpudcsatXaxTrMut75pg9q42khsttu0TiBMcJ8gnVAx4b4tzZZrm2tbZdthx7ILs1tuV2/3ZqLpxMSJGyY2T/xu72Kfab/H/rGDpkOIw3KHRod3jtaOQsdyx7tOdKdApyVODU5vnW2cxc47nB+4MFwmu6x0aXL509XNVe5a7drrZuqW5LbN7T6HyYngrOZccSe4+7kvcT/l/sXD1SPH46jHH562nhmeBzx7JllMEk/aM6nTy9hL4LXLq92b7Z3k/ZN3u4+Rj8Cnwue5r4mvyHevbzfXipvOPch942fvJ/er9fvE8+At4p3zx/kH+Rf6twRoBsQElAU8CzQOTA2sCuwLcglaEHQumBAcGrwh+D5fny/kV/L7QtxCFoVcDKWFRoWWhT4Psw6ThzVORieHTN44+ckUsynSKfXhEM4P3xj+NMIiYk7EyanEqRFTy6e+iHSIXBjZHMWImhV1IOpjtF/0uujHMZYxipimWLXY6bGVsZ/i/OOK49rjJ8Yvir+eoJsgSWhIJCXGJu5N7J8WMG3ztK7pLtMLprfNsJgxb8bVmbozM2eenqU2SzDrWBIhKS7pQNI3QbigQtCfzE/eltwn5Am3CF+JfEWbRL1iL3GxuDvFK6U4pSfVK3Vjam+aT1pJ2msJT1ImeZsenL4z/VNGeMa+jMHMuMyaLHJWUtYJqaY0Q3pxtsHsebNbZTayAln7HI85m+f0yUPle7OR7BnZDTlMbDi6obBU/KDoyPXOLc/9PDd27rF5GvOk827Mt56/an53XmDezwvwC4QLmhYaLVy2sGMRd9Guxcji5MVNS0yW5C/pWhq0dP8y6rKMZb8st19evPzDirgVjfn6+UvzO38I+qGqQLVAXnB/pefKnT/if5T82LLKadXWVd8LRYXXiuyLSoq+rRauvrbGYU3pmsG1KWtb1rmu27GeuF66vm2Dz4b9xRrFecWdGydvrNvE3lS46cPmWZuvljiX7NxC3aLY0l4aVtqw1XTr+q3fytLK7pX7ldds09u2atun7aLtt3f47qjeqb+zaOfXnyQ/PdgVtKuuwryiZDdxd+7uF3ti9zT/zPm5cq/u3qK9f+6T7mvfH7n/YqVbZeUBvQPrqtAqRVXvwekHbx3yP9RQbVu9q4ZVU3QYDisOvzySdKTtaOjRpmOcY9XHzY5vq2XUFtYhdfPr+urT6tsbEhpaT4ScaGr0bKw9aXdy3ymjU+WntU6vO0M9k39m8Gze2f5zsnOvz6ee72ya1fT4QvyFuxenXmy5FHrpyuXAyxeauc1nr3hdOXXV4+qJa5xr9dddr9fdcLlR+4vLL7Utri11N91uNtzyv9XYOqn1zG2f2+fv+N+5fJd/9/q9Kfda22LaHtyffr/9gehBz8PMh28f5T4aeLz0CeFJ4VP1pyXP9J5V/Gr1a027a/vpDv+OG8+jnj/uFHa++i37t29d+S/oL0q6Dbsrexx7TvUG9t56Oe1l1yvZq4HXBb9r/L7tjeWb43/4/nGjL76v66387eC71e913u/74PyhqT+i/9nHrI8Dnwo/63ze/4Xzpflr3NfugbnfSN9K/7T6s/F76Pcng1mDgzKBXDA8CuAwRVNSAN7tA6AnADCwGYI6bWSmHhZk5D9gmOA/8cjcPSyuANWYGRqNeOcADmNqvhRAzRdgaCyK9gXUyUmpo/Pv8Kw+JAbYv8K0HECi2x6tebQU/iEjc/xf+v6nBWXWv9l/AV0EC6JTIblRAAAAeGVYSWZNTQAqAAAACAAFARIAAwAAAAEAAQAAARoABQAAAAEAAABKARsABQAAAAEAAABSASgAAwAAAAEAAgAAh2kABAAAAAEAAABaAAAAAAAAAJAAAAABAAAAkAAAAAEAAqACAAQAAAABAAAAFKADAAQAAAABAAAAFAAAAAAXNii1AAAACXBIWXMAABYlAAAWJQFJUiTwAAAB82lUWHRYTUw6Y29tLmFkb2JlLnhtcAAAAAAAPHg6eG1wbWV0YSB4bWxuczp4PSJhZG9iZTpuczptZXRhLyIgeDp4bXB0az0iWE1QIENvcmUgNi4wLjAiPgogICA8cmRmOlJERiB4bWxuczpyZGY9Imh0dHA6Ly93d3cudzMub3JnLzE5OTkvMDIvMjItcmRmLXN5bnRheC1ucyMiPgogICAgICA8cmRmOkRlc2NyaXB0aW9uIHJkZjphYm91dD0iIgogICAgICAgICAgICB4bWxuczp0aWZmPSJodHRwOi8vbnMuYWRvYmUuY29tL3RpZmYvMS4wLyI+CiAgICAgICAgIDx0aWZmOllSZXNvbHV0aW9uPjE0NDwvdGlmZjpZUmVzb2x1dGlvbj4KICAgICAgICAgPHRpZmY6T3JpZW50YXRpb24+MTwvdGlmZjpPcmllbnRhdGlvbj4KICAgICAgICAgPHRpZmY6WFJlc29sdXRpb24+MTQ0PC90aWZmOlhSZXNvbHV0aW9uPgogICAgICAgICA8dGlmZjpSZXNvbHV0aW9uVW5pdD4yPC90aWZmOlJlc29sdXRpb25Vbml0PgogICAgICA8L3JkZjpEZXNjcmlwdGlvbj4KICAgPC9yZGY6UkRGPgo8L3g6eG1wbWV0YT4KReh49gAAAjRJREFUOBGFlD2vMUEUx2clvoNCcW8hCqFAo1dKhEQpvsF9KrWEBh/ALbQ0KkInBI3SWyGPCCJEQliXgsTLefaca/bBWjvJzs6cOf/fnDkzOQJIjWm06/XKBEGgD8c6nU5VIWgBtQDPZPWtJE8O63a7LBgMMo/Hw0ql0jPjcY4RvmqXy4XMjUYDUwLtdhtmsxnYbDbI5/O0djqdFFKmsEiGZ9jP9gem0yn0ej2Yz+fg9XpfycimAD7DttstQTDKfr8Po9GIIg6Hw1Cr1RTgB+A72GAwgMPhQLBMJgNSXsFqtUI2myUo18pA6QJogefsPrLBX4QdCVatViklw+EQRFGEj88P2O12pEUGATmsXq+TaLPZ0AXgMRF2vMEqlQoJTSYTpNNpApvNZliv1/+BHDaZTAi2Wq1A3Ig0xmMej7+RcZjdbodUKkWAaDQK+GHjHPnImB88JrZIJAKFQgH2+z2BOczhcMiwRCIBgUAA+NN5BP6mj2DYff35gk6nA61WCzBn2JxO5wPM7/fLz4vD0E+OECfn8xl/0Gw2KbLxeAyLxQIsFgt8p75pDSO7h/HbpUWpewCike9WLpfB7XaDy+WCYrFI/slk8i0MnRRAUt46hPMI4vE4+Hw+ec7t9/44VgWigEeby+UgFArJWjUYOqhWG6x50rpcSfR6PVUfNOgEVRlTX0HhrZBKz4MZjUYWi8VoA+lc9H/VaRZYjBKrtXR8tlwumcFgeMWRbZpA9ORQWfVm8A/FsrLaxebd5wAAAABJRU5ErkJggg==";
}