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	This worker accepts a POST request with a raw file (JSON, CSV, TXT) and counts the number of occurrences of a given keyword.
	
	### Example POST Request
	POST /?action=wc-execute&keyWord=YOUR_KEYWORD 
	BODY: raw bytes of your file (JSON, CSV, TXT) -> with open(filename, "rb") as file
	MAX_BODY_SIZE: 5MB
	
	### Response
	The keyword "example" appeared 3 times.