is_keras_available.qmd

---
execute:
  freeze: true
---

[R/utils.R](https://github.com/rstudio/keras//blob/main/R/utils.R#L343) 

# is_keras_available

## Check if Keras is Available

## Description
 Probe to see whether the Keras Python package is available in the current system environment. 


## Usage
```r
 
is_keras_available(version = NULL) 
```

## Arguments
|Arguments|Description|
|---|---|
| version | Minimum required version of Keras (defaults to `NULL`, no required version). |



## Value
 Logical indicating whether Keras (or the specified minimum version of Keras) is available. 


## Examples
```{r, eval=ecodown::examples_not_run()}
library(keras)
 
# testthat utilty for skipping tests when Keras isn't available 
skip_if_no_keras <- function(version = NULL) { 
  if (!is_keras_available(version)) 
    skip("Required keras version not available for testing") 
} 
 
# use the function within a test 
test_that("keras function works correctly", { 
  skip_if_no_keras() 
  # test code here 
}) 
 
 
```