SYN
SYN: "IMTBL_POST_MESSAGE_SYN"
ACK
ACK: "IMTBL_POST_MESSAGE_ACK"
PROVIDER_RELAY
PROVIDER_RELAY: "IMTBL_PROVIDER_RELAY"
PROVIDER_UPDATED
PROVIDER_UPDATED: "IMTBL_PROVIDER_UPDATED"
EIP_6963_EVENT
EIP_6963_EVENT: "IMTBL_EIP_6963_EVENT"
WIDGET_EVENT
WIDGET_EVENT: "IMTBL_CHECKOUT_WIDGET_EVENT"