AssumeRoleTokenProviderNotSetError

[mtrupehu]

Describe the bug
My AWS profile has enabled MFA, When I ssue the following command, I get Authentication errors as below:

cw ls groups

panic: AssumeRoleTokenProviderNotSetError: assume role with MFA enabled, but AssumeRoleTokenProvider session option not set.
goroutine 1 [running]:
github.com/aws/aws-sdk-go/aws/session.Must(...)
/Users/lucagrulla/go/pkg/mod/github.com/aws/aws-sdk-go@v1.14.17/aws/session/session.go:281
github.com/lucagrulla/cw/cloudwatch.New(0xc00005d3a0, 0xc00005d3b0, 0xc0000946e0, 0x0)
/Users/lucagrulla/Projects/cw/cloudwatch/client.go:34 +0x284
main.main()
/Users/lucagrulla/Projects/cw/main.go:176 +0x251

To Reproduce
Steps to reproduce the behavior:

1. Which command
   cw ls groups
2. Which flags/arguments are used
   ls

Expected behavior
Expected to list groups

Screenshots
N/A

Desktop (please complete the following information):

• MacOS 10.14.2
• Terminal (bash)

Additional context
N/A

[lucagrulla]

Thanks for filing this.

Which version of cw are you running? v3.2.0?