src/Composer/Installer.php
public function setClassMapAuthoritative($classMapAuthoritative = false)
    {
        $this->classMapAuthoritative = (bool) $classMapAuthoritative;
        if ($this->classMapAuthoritative) {
            // Force optimizeAutoloader when classmap is authoritative
            $this->setOptimizeAutoloader(true);
        }

        return $this;
    }
public function setClassMapAuthoritative($classMapAuthoritative = false)
    {
        $this->classMapAuthoritative = (bool) $classMapAuthoritative;
        if ($this->classMapAuthoritative) {
            // Force optimizeAutoloader when classmap is authoritative
            $this->setOptimizeAutoloader(true);
        }

        return $this;
    }
Whether or not generated autoloader considers the class map
authoritative.

@param  bool      $classMapAuthoritative
@return Installer