No POD found for param_role.t. Time to read the source?
param_role.t
To install MooseX::MethodAttributes, copy and paste the appropriate command in to your terminal.
cpanm
cpanm MooseX::MethodAttributes
CPAN shell
perl -MCPAN -e shell install MooseX::MethodAttributes
For more information on module installation, please visit the detailed CPAN module installation guide.