src/Composer/Installer/LibraryInstaller.php
public function ensureBinariesPresence(PackageInterface $package)
    {
        $this->binaryInstaller->installBinaries($package, $this->getInstallPath($package), false);
    }
public function ensureBinariesPresence(PackageInterface $package)
    {
        $this->binaryInstaller->installBinaries($package, $this->getInstallPath($package), false);
    }
Make sure binaries are installed for a given package.

@param PackageInterface $package Package instance