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safetensors is a pure R implementation of the safetensors file format.
Currently only reading files is supported.
safetensors can be installed from CRAN with:
install.packages("safetensors")The development version of safetensors from GitHub with:
# install.packages("devtools")
devtools::install_github("mlverse/safetensors")Here’s an example of writing and reading safetensors files:
library(torch)
library(safetensors)
tensors <- list(
x = torch_randn(10, 10),
y = torch_ones(10, 10)
)
str(tensors)
#> List of 2
#> $ x:Float [1:10, 1:10]
#> $ y:Float [1:10, 1:10]
tmp <- tempfile()
safe_save_file(tensors, tmp)
tensors <- safe_load_file(tmp)
str(tensors)
#> List of 2
#> $ x:Float [1:10, 1:10]
#> $ y:Float [1:10, 1:10]
#> - attr(*, "metadata")=List of 2
#> ..$ x:List of 3
#> .. ..$ shape : int [1:2] 10 10
#> .. ..$ dtype : chr "F32"
#> .. ..$ data_offsets: int [1:2] 0 400
#> ..$ y:List of 3
#> .. ..$ shape : int [1:2] 10 10
#> .. ..$ dtype : chr "F32"
#> .. ..$ data_offsets: int [1:2] 400 800
#> - attr(*, "max_offset")= int 929These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.