fix: export custom header methods (#552) #30

Job	Run time
Review / Codegen	1m 0s
Review / Lint TSC	1m 4s
Review / Build Library	57s
Review / Lint ESLint	1m 4s
Review / Test	1m 5s
Review / Android / Build old Arch	3m 33s
Review / iOS / Build old Arch	5m 33s
Review / Android / Build new Arch	6m 35s
Review / iOS / Build new Arch	5m 31s
Review / iOS / Test old Arch	4m 13s
Review / iOS / Test new Arch	3m 21s
Review / Android / Test old Arch	3m 4s
Review / Android / Test new Arch	2m 59s
Release	5m 14s
	45m 13s

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