An event to create a new CallList (currently a new transaction when tracing a block).
An Evm
event proxied by the Moonbeam runtime to this host function.
evm -> moonbeam_runtime -> host.
A Gasometer
event proxied by the Moonbeam runtime to this host function.
evm_gasometer -> moonbeam_runtime -> host.
A Runtime
event proxied by the Moonbeam runtime to this host function.
evm_runtime -> moonbeam_runtime -> host.
Allow the tracing module in the runtime to know how to filter Step event
content, as cloning the entire data is expensive and most of the time
not necessary.