Lsp.IoSourceJSON-RPC input/output
Set the log output function
Read a JSON-RPC message from channel; None signals EOF
Send a JSON-RPC message to channel
Logging
Trace values
Set the trace value
Create a logMessage notification
Send a window/logMessage notification to the client
Send a window/logMessage notification to the client
Create a logTrace notification
Send a $/logTrace notification to the client