1*e1fe3e4aSElliott Hughesfrom typing import NamedTuple 2*e1fe3e4aSElliott Hughes 3*e1fe3e4aSElliott HughesLOOKUP_DEBUG_INFO_KEY = "com.github.fonttools.feaLib" 4*e1fe3e4aSElliott HughesLOOKUP_DEBUG_ENV_VAR = "FONTTOOLS_LOOKUP_DEBUGGING" 5*e1fe3e4aSElliott Hughes 6*e1fe3e4aSElliott Hughes 7*e1fe3e4aSElliott Hughesclass LookupDebugInfo(NamedTuple): 8*e1fe3e4aSElliott Hughes """Information about where a lookup came from, to be embedded in a font""" 9*e1fe3e4aSElliott Hughes 10*e1fe3e4aSElliott Hughes location: str 11*e1fe3e4aSElliott Hughes name: str 12*e1fe3e4aSElliott Hughes feature: list 13