Task: Create a new customer in Chargebee

n8n workflow JSON:
{"id":"103","name":"Create a new customer in Chargebee","nodes":[{"name":"On clicking 'execute'","type":"n8n-nodes-base.manualTrigger","position":[250,300],"parameters":{},"typeVersion":1},{"name":"Chargebee","type":"n8n-nodes-base.chargebee","position":[460,300],"parameters":{"resource":"customer","properties":{"last_name":"","first_name":""}},"credentials":{"chargebeeApi":""},"typeVersion":1}],"active":false,"settings":{},"connections":{"On clicking 'execute'":{"main":[[{"node":"Chargebee","type":"main","index":0}]]}}}