@brief returns a const reverse iterator to one before the first @sa https://json.nlohmann.me/api/basic_json/crend/

@brief return flattened JSON value @sa https://json.nlohmann.me/api/basic_json/flatten/

@brief returns the allocator associated with the container @sa https://json.nlohmann.me/api/basic_json/get_allocator/

! * @brief convert a byte to a uppercase hex representation * @param[in] byte byte to represent * @return representation ("00".."FF")

return whether the iterator is at end

@brief return whether value is an unsigned integer number @sa https://json.nlohmann.me/api/basic_json/is_number_unsigned/

Check for infinity. See also:** Documentation for [std::isinf](https://en.cppreference.com/w/cpp/numeric/math/isinf). \param arg number to check \retv

! @brief determine system byte order @return true if and only if system's byte order is little endian @note from https://stackoverflow.com/a/1001328

! @brief post-increment (it++) @pre The iterator is initialized; i.e. `m_object != nullptr`. */

! @brief post-decrement (it--) @pre The iterator is initialized; i.e. `m_object != nullptr`. */

@brief remove last reference token @sa https://json.nlohmann.me/api/json_pointer/pop_back/

Expand a 4-D tensor [batch, heads, time, d_head] along the batch dimension by `repeats`, producing [batch*repeats, heads, time, d_head].

reset token_buffer; current character is beginning of token

Multiply by power of two. This function is exact to rounding for all rounding modes. See also:** Documentation for [std::scalbln](https://en.cpprefer