You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: cubic.go
    path of file: ./repos/sealer/vendor/github.com/lucas-clemente/quic-go/internal/congestion
    
    the code of the file until where you have to start completion: package congestion

import (
	"math"
	"time"

	"github.com/lucas-clemente/quic-go/internal/protocol"
	"github.com/
    
func (c *Cubic) alpha() float32 {
	// TCPFriendly alpha is described in Section 3.3 of the CUBIC paper. Note that
	// beta here is a cwnd multiplier, and is equal to 1-beta from the paper.
	// We derive the equivalent alpha for an N-connection emulation as:
	b := c.beta()
	return 3 * float32(c.numConnections) * float32(c.numConnections) * (1 - b) / (1 + b)
}