Probe to see whether the Keras python package is available in the current system environment.

is_keras_available(version = NULL)

Arguments

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

if (FALSE) {
# 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
})
}