Bool constructs a Field with the given key and value.

Duration constructs a Field with the given key and value.

Error constructs a Field that lazily stores err.Error() under the key "error".

Float64 constructs a Field with the given key and value.

Int constructs a Field with the given key and value.

Int64 constructs a Field with the given key and value.

Message constructs a field to store the message under the key message.

Object constructs a field with the given key and an arbitrary object.

SetOptions is used to configure the log system.

Stack constructs a Field that stores a stacktrace under the key "stacktrace".

String constructs a Field with the given key and value.

Stringer constructs a Field with the given key and the output of the value's String method.

Time constructs a Field with the given key and value.

TypeOf constructs a field with the given key and an arbitrary object that will log the type information lazily.

Uint constructs a Field with the given key and value.

Uint64 constructs a Field with the given key and value.

WithEventSubscriber option replaces the default Event subscriber with fn.

Subscription is returned from the Subscribe function.