# LibTmux::MCP::Application#call

**MCP concept example** A working example of the core library. It can change without notice.

- **Module:** LibTmux::MCP
- **Package:** libtmux-mcp
- **Language:** Ruby
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-ruby/blob/d8ce4bbee0ca7748a81929f81f7d8d07f8c51267/gems/libtmux-mcp/lib/libtmux/mcp/application.rb#L117
- **Page:** https://libtmux.org/en/ruby/v0.1.0.alpha.3/mcp/reference/libtmux-mcp-application-call/

```
def call: (
  ::String,
  ?::Hash[untyped, untyped],
  ?cancellation: untyped
) -> untyped
```

Behavior: MCP application.

Behavior contract: MCP application.

## Parameters

- `arg1` (`::String`)
- `arg2` (`::Hash[untyped, untyped]`)
- `cancellation` (`untyped`)