src/Environaut/Config/Reader/Dom/DomDocument.php
public function setDefaultNamespace($prefix = self::NAMESPACE_PREFIX, $uri = self::NAMESPACE_ENVIRONAUT_1_0)
    {
        $this->default_namespace_uri = $uri;
        $this->default_namespace_prefix = $prefix;

        $this->xpath->registerNamespace($prefix, $uri);
    }
public function setDefaultNamespace($prefix = self::NAMESPACE_PREFIX, $uri = self::NAMESPACE_ENVIRONAUT_1_0)
    {
        $this->default_namespace_uri = $uri;
        $this->default_namespace_prefix = $prefix;

        $this->xpath->registerNamespace($prefix, $uri);
    }
Set the default namespace that should be used when accessing elements via
convenience methods and bind it to the internal xpath instance.

@param string $prefix default prefix to use
@param string $uri namespace URI