zsh: command not found: sdk code example

Example: [oh-my-zsh] plugin 'zsh-sdkman' not found

# SDK Man replaced GVM. Using for Groovy, Gradle, and Maven Version Management
export SDKMAN_DIR="$HOME/.sdkman"
[[ -s "$HOME/.sdkman/bin/sdkman-init.sh" ]] && source "$HOME/.sdkman/bin/sdkman-init.sh"