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Quote: use '(a, b)' for a tuple or pair of values; used for multiple return values, error returns, simple data structures
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Topic:
attribute-value pairs as information
Topic:
failure returning functions and expressions
Topic:
tuples
Quotation Skeleton
line 45 [of the example] reads in the file: '(ri, … The result is a tuple or pair of … error string. If all goes well, the 'err' … The interesting property of this style of error … Google-1 Google-2
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Topic: attribute-value pairs as information (53 items)
Topic: failure returning functions and expressions (24 items)
Topic: tuples (17 items)