# Functions
NewInvalidActionError returns a new InvalidAction provided the field name {string}.
NewMissingFieldError returns a new MissingFieldError provided the field name {string}.
NewProtobufEncodingError returns a new ProtobufEncodingError provided the error from proto library.
# Structs
InvalidAction is the error for an invalid action for a SabrePayload.
MissingFieldError is the error for a missing field.
ProtobufEncodingError is the error for when a protobuf fails encoding.