R Under development (unstable) (2024-09-03 r87093 ucrt) -- "Unsuffered Consequences"
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> library(testthat)
> library(s3)
> 
> test_check("s3")
[ FAIL 0 | WARN 0 | SKIP 25 | PASS 4 ]

══ Skipped tests (25) ══════════════════════════════════════════════════════════
• On CRAN (22): 'test-s3_check_for_file.R:2:3',
  'test-s3_check_for_file.R:10:3', 'test-s3_check_for_file.R:20:3',
  'test-s3_check_for_file.R:27:3', 'test-s3_check_for_file.R:36:3',
  'test-s3_check_for_file.R:48:3', 'test-s3_check_for_file.R:60:3',
  'test-s3_get.R:2:3', 'test-s3_get.R:33:3', 'test-s3_get.R:45:3',
  'test-s3_get.R:59:3', 'test-s3_get.R:73:3', 'test-s3_get.R:86:3',
  'test-s3_get_file_size.R:2:3', 'test-s3_get_file_size.R:15:3',
  'test-s3_get_file_size.R:24:3', 'test-s3_get_files.R:2:3',
  'test-s3_get_files.R:13:3', 'test-s3_get_files.R:25:3',
  'test-s3_get_files.R:41:3', 'test-s3_get_files.R:57:3',
  'test-s3_get_signed_url.R:2:3'
• aws credentials not available for testing (3): 'test-aws_env_vars.R:2:3',
  'test-s3_get.R:15:3', 'test-s3_get.R:24:3'

[ FAIL 0 | WARN 0 | SKIP 25 | PASS 4 ]
> 
> proc.time()
   user  system elapsed 
   1.50    0.31    1.78