Method PhpCfdi\Credentials\Certificate::extractArrayStrings() should return array<string, string> but returns array<string>.

Method PhpCfdi\Credentials\Internal\Key::extractArrayStrings() should return array<string, string> but returns array<string>.

Method PhpCfdi\Credentials\Tests\Unit\Internal\DataArrayTraitSpecimen::extractArrayStrings() should return array<string, string> but returns array<string>.

Method PhpCfdi\Credentials\Pfx\PfxExporter::export() should return string but returns mixed.

Method PhpCfdi\Credentials\Pfx\PfxReader::loadPkcs12() should return array{cert: string, pkey: string} but returns array{cert: mixed, pkey: mixed}.

Cannot access offset 'cert' on mixed.

Cannot access offset 'pkey' on mixed.

Parameter &$signature by-ref type of method PhpCfdi\Credentials\PrivateKey::openSslSign() expects string|null, mixed given.

Anonymous function should return string but returns mixed.

Process completed with exit code 1.