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A widget that detects the visibility of its child and notifies a callback.
A Dart library containing convenient extension methods on basic Dart objects.
Function for sanitizing HTML to prevent XSS by restrict elements and attributes to a safe subset of allowed values.
Runtime library for protocol buffers support. Use https://pub.flutter-io.cn/packages/protoc_plugin to generate dart code for your '.proto' files.
Obtain Access credentials for Google services using OAuth 2.0
Flutter plugin for Google Mobile Ads, supporting banner, interstitial (full-screen), rewarded and native ads
A URL-safe base64 encoding for UUIDv4 stripped of padding. Useful when embedding short random UUIDs in URLs.
Auxiliary classes for reliably running a periodic task in a long-running process such as web-server.
PEM encoding/decoding of textual keys following RFC 7468, supporting both lax/strict-mode, and certificates chains of concatenated PEM blocks.
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