A TCP server. A TCP server. Listens to connections on a port and returns a [StreamPeerTCP] when it gets an incoming connection. [b]Note:[/b] When exporting to Android, make sure to enable the [code]INTERNET[/code] permission in the Android export preset before exporting the project or using one-click deploy. Otherwise, network communication of any kind will be blocked by Android. Returns the local port this server is listening to. Returns [code]true[/code] if a connection is available for taking. Returns [code]true[/code] if the server is currently listening for connections. Listen on the [param port] binding to [param bind_address]. If [param bind_address] is set as [code]"*"[/code] (default), the server will listen on all available addresses (both IPv4 and IPv6). If [param bind_address] is set as [code]"0.0.0.0"[/code] (for IPv4) or [code]"::"[/code] (for IPv6), the server will listen on all available addresses matching that IP type. If [param bind_address] is set to any valid address (e.g. [code]"192.168.1.101"[/code], [code]"::1"[/code], etc), the server will only listen on the interface with that addresses (or fail if no interface with the given address exists). Stops listening. If a connection is available, returns a StreamPeerTCP with the connection.