vendor/google.golang.org/api/internal/settings.go

// Package internal supports the options and transport packages.
package internal

import (
	"net/http"

	"golang.org/x/oauth2"
	"google.golang.org/grpc"
)

// DialSettings holds information needed to establish a connection with a
// Google API service.
type DialSettings struct {
	Endpoint                   string
	Scopes                     []string
	ServiceAccountJSONFilename string // if set, TokenSource is ignored.
	TokenSource                oauth2.TokenSource
	UserAgent                  string
	APIKey                     string
	HTTPClient                 *http.Client
	GRPCDialOpts               []grpc.DialOption
	GRPCConn                   *grpc.ClientConn
}