utils::globalVariables(c('FIPS', 'FIPS_1', 'FIPS_2', 'GEOID', 'GEOID.1', 'ID1', 'ID2', 'NAME', 'NCESID', 'Postal', 'Region',
'STATE_FIPS', 'State', 'd2plus_races', 'dAmIndian_Aknative', 'dEnroll_district',
'dFRL', 'dHawaiian_PI', 'dOperational_schools', 'dUrbanicity', 'data_1', 'data_2',
'data_diff', 'enroll_ccd', 'geometry', 'id1', 'id2', 'pctNonwhite', 'sdType', 'sdtype_1',
'sdtype_2', 'student_per_sq_mile', 'u_id','County', 'FIPSn', 'MHI', 'MPV'))
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