NewInsecureReceiver returns a new `InsecureReceiver` instance configured by 'uri' in the form of: insecure://.

NewReceiver() returns a new `webhookd.WebhookReceiver` instance derived from 'uri'.

Receivers() returns the list of schemes that have been "registered".

RegisterReceiver() associates 'scheme' with 'init_func' in an internal list of avilable `webhookd.WebhookReceiver` implementations.

Schemes() returns the list of schemes that have been "registered".

LogReceiver implements the `webhookd.WebhookReceiver` interface for receiving webhook messages in an insecure fashion.

ReceiverInitializationFunc is a function used to initialize an implementation of the `webhookd.WebhookReceiver` interface.