enum
extend
extensions
import
message
oneof
option
optional
package
public
repeated
required
reserved
returns
rpc LotsOfReplies(
service
stream
syntax
to

----------------------------------------------------

[
	["keyword", "enum"],
	["keyword", "extend"],
	["keyword", "extensions"],
	["keyword", "import"],
	["keyword", "message"],
	["keyword", "oneof"],
	["keyword", "option"],
	["keyword", "optional"],
	["keyword", "package"],
	["keyword", "public"],
	["keyword", "repeated"],
	["keyword", "required"],
	["keyword", "reserved"],
	["keyword", "returns"],
	["keyword", "rpc"],
	["function", "LotsOfReplies"],
	["punctuation", "("],
	["keyword", "service"],
	["keyword", "stream"],
	["keyword", "syntax"],
	["keyword", "to"]
]

----------------------------------------------------

Check for keywords
