package main import ( "git.apache.org/thrift.git/lib/go/thrift" "os" ) func main() { // Open a new file for writing transportFactory := thrift.NewTFramedTransportFactory(thrift.NewTTransportFactory()) protocolFactory := thrift.NewTBinaryProtocolFactoryDefault() file, err := os.Create("example.thrift") if err != nil { panic(err) } defer file.Close() // Initialize the transport and protocol transport := transportFactory.GetTransport(thrift.NewStreamTransport(file, file)) protocol := protocolFactory.GetProtocol(transport) // Write a field of type string with field id 1 protocol.WriteFieldBegin("name", thrift.STRING, 1) protocol.WriteString("John") protocol.WriteFieldEnd() // Write a field of type i32 with field id 2 protocol.WriteFieldBegin("age", thrift.I32, 2) protocol.WriteI32(25) protocol.WriteFieldEnd() // Flush the buffer to the file err = transport.Flush() if err != nil { panic(err) } }In this example, we are creating a new file and initializing a new transport and protocol. Then, we are writing two fields, one with a string data type and one with an i32 data type, using the WriteFieldBegin method with the field id and data type specified. Finally, we are flushing the buffer to the file. In conclusion, the Thrift package library is used in this example to write a binary serialized file with data in Go using the TProtocol interface and the WriteFieldBegin method.