Evaluate an expression to generate the output value. If glob was
specified, the value of self must be an array containing file objects
that were matched. If no files were matched, self must be a zero
length array; if a single file was matched, the value of self is an
array of a single element. Additionally, if loadContents is true,
the File objects must include up to the first 64 KiB of file contents
in the contents field.
Evaluate an expression to generate the output value. If glob was specified, the value of self must be an array containing file objects that were matched. If no files were matched, self must be a zero length array; if a single file was matched, the value of self is an array of a single element. Additionally, if loadContents is true, the File objects must include up to the first 64 KiB of file contents in the contents field.