vendor/braintree/braintree_php/lib/Braintree/Configuration.php

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<?php // phpcs:ignore

namespace Braintree;

/**
 * Configuration registry
 */
class Configuration
{
    public static $global;

    private $_environment = null;
    private $_merchantId = null;
    private $_publicKey = null;
    private $_privateKey = null;
    private $_clientId = null;
    private $_clientSecret = null;
    private $_accessToken = null;
    private $_proxyHost = null;
    private $_proxyPort = null;
    private $_proxyType = null;
    private $_proxyUser = null;
    private $_proxyPassword = null;
    private $_timeout = 60;
    private $_sslVersion = null;
    private $_acceptGzipEncoding = true;

    /**
     * Braintree API version to use
     */
    const API_VERSION =  6;
    const GRAPHQL_API_VERSION = '2018-09-10';

    // phpcs:ignore PEAR.Commenting.FunctionComment.Missing
    public function __construct($attribs = [])
    {
        foreach ($attribs as $kind => $value) {
            if ($kind == 'environment') {
                CredentialsParser::assertValidEnvironment($value);
                $this->_environment = $value;
            }
            if ($kind == 'merchantId') {
                $this->_merchantId = $value;
            }
            if ($kind == 'publicKey') {
                $this->_publicKey = $value;
            }
            if ($kind == 'privateKey') {
                $this->_privateKey = $value;
            }
            if ($kind == 'proxyHost') {
                $this->_proxyHost = $value;
            }
            if ($kind == 'proxyPort') {
                $this->_proxyPort = $value;
            }
            if ($kind == 'proxyType') {
                $this->_proxyType = $value;
            }
            if ($kind == 'proxyUser') {