https://docs.envelope.so/api-docs/events/get-event https://docs.envelope.so/api-docs/events/list-events https://docs.envelope.so/api-docs/guests/check-in https://docs.envelope.so/api-docs/guests/check-in-remove https://docs.envelope.so/api-docs/guests/create-guest https://docs.envelope.so/api-docs/guests/get-guest https://docs.envelope.so/api-docs/guests/list-guests https://docs.envelope.so/api-docs/guests/register-guest https://docs.envelope.so/api-docs/guests/update-guest https://docs.envelope.so/introduction