Enables use of shared session key material in accordance with RFC 5705.
@return [Array] specs of default gems that are ‘==` to the given `spec`.
Returns true if the document is valid with all lines removed. By default it checks all blocks in present in the frontier array, but can be used for arbitrary arrays of codeblocks as well
case foo; in bar; end ^^^^^^^^^^^^^^^^^^^^^
foo in bar ^^^^^^^^^^
foo => bar ^^^^^^^^^^
/(?<foo>foo)/ =~ bar ^^^^^^^^^^^^^^^^^^^^
Interpolate substitution vars in the arg (i.e. $(DEFFILE))
case foo; in bar; end ^^^^^^^^^^^^^^^^^^^^^
foo in bar ^^^^^^^^^^