The HTTP layer implementation.
The Gravatar service settings.
The execution context to handle the asynchronous operations.
The execution context to handle the asynchronous operations.
A named logger instance.
A named logger instance.
Retrieves the URL for the given email address.
Retrieves the URL for the given email address.
The email address for the avatar.
Maybe an avatar URL or None if no avatar could be found for the given email address.
Retrieves avatar URLs from the Gravatar service.