protected boolean peek(TokenKind desiredTokenKind) {
		return peek(desiredTokenKind, false);
	}
Return {@code true} if the indicated token matches the current token
position.

@param desiredTokenKind token to match
@return true if the current token kind matches the provided token kind
spring-xd-dirt/src/main/java/org/springframework/xd/dirt/job/dsl/Tokens.java