Move map method #45

[u5surf]

Checklist Ensure all of these are completed before opening the PR:

• [o] Run goimports
• [o] Read the contribution guide
• [o] Read the code of conduct
• [o] Read the coding standards
• [o] Tests run with -race
• [o] Tests written to cover any new code
• [o] Added yourself to the contributors file

Describe the changes Brief explanation about what changed in this PR. move Map method following coding_standard. Closing issues Resolves #45

[bcvery1]

Hey @u5surf - thanks for this, need to get v0.2.0 done first, but will merge this hopefully in the next day or two