Move _tf_close_coeff back to testing realm and make better use of assertion messages #57

Job	Run time
Build conda Py3.11, ubuntu	6m 25s
Build pip Py3.10, ubuntu, unset BLA_VENDOR	2m 3s
Build pip Py3.12, ubuntu, unset BLA_VENDOR	2m 7s
Build conda Py3.11, macos	7m 36s
Build pip Py3.10, macos, unset BLA_VENDOR	2m 24s
Build conda Py3.11, windows	17m 38s
Build pip Py3.12, macos, unset BLA_VENDOR	2m 7s
Build pip Py3.12, ubuntu, Generic BLA_VENDOR	2m 12s
Build pip Py3.12, ubuntu, OpenBLAS BLA_VENDOR	2m 14s
Build pip Py3.12, macos, Apple BLA_VENDOR	2m 27s
Build pip Py3.12, macos, Generic BLA_VENDOR	1m 58s
Build pip Py3.12, macos, OpenBLAS BLA_VENDOR	2m 34s
Create wheel test matrix	7s
Test wheel macos-3.12-Generic, Generic BLAS lib	2m 6s
Test wheel macos-3.12-Generic, OpenBLAS BLAS lib	2m 11s
Test wheel macos-3.12-Generic, Apple BLAS lib	1m 56s
Test wheel ubuntu-3.12-OpenBLAS, OpenBLAS BLAS lib	3m 42s
Test wheel ubuntu-3.12-Generic, Generic BLAS lib	3m 30s
Test wheel ubuntu-3.12-Generic, OpenBLAS BLAS lib	3m 57s
Test wheel macos-3.12-unset, unset BLAS lib	1m 58s
Test wheel ubuntu-3.10-unset, unset BLAS lib	3m 43s
Test wheel macos-3.12-Apple, Apple BLAS lib	2m 8s
Test wheel ubuntu-3.12-unset, unset BLAS lib	3m 55s
Test wheel macos-3.10-unset, unset BLAS lib	2m 20s
Test wheel macos-3.12-OpenBLAS, OpenBLAS BLAS lib	2m 8s
Create conda test matrix	12s
	1h 25m 38s

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