parameters: (h, f)
docstring: JPEG data in JFIF format
docstring_summary: JPEG data in JFIF format
docstring_tokens: JPEG data in JFIF format
function: def test_jpeg(h, f):
      """JPEG data in JFIF format"""
      if h[6:10] == 'JFIF':
          return 'jpeg'
function_tokens: def test_jpeg ( h , f ) : if h [ 6 : 10 ] == 'JFIF' : return 'jpeg'