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read_header_line

wm_memory::envelope

Function read_header_line 

Source 
pub fn read_header_line(line: &str) -> HeaderRead
Expand description

Read the first non-empty line of a stream as a potential header.

Returns HeaderRead::NotAHeader when the line parses as JSON but has no wm_envelope key, or is not JSON at all (a bare v1 record).