    @size(x:value)

If `x` is a scalar value, the function returns a strictly negative integer related to the type of the argument (that is, two scalar values of the same type gives the same result).

If `x` is a map or a tab, the function returns the number of elements in its argument (which is a positive integer).

If it is a nim, it returns the number of breakpoints of the nim (which is not the dimension of the nim). Note that a nim with zero breakpoints is the result of a wrong definition.

See also @shape and predicates: @!=, @&&, @||, @<=, @<, @==, @>=, @>, @approx, @arch_darwin, @arch_linux, @arch_windows, @between, @empty, @find, @is_bool, @is_defined, @is_exec, @is_fct, @is_float, @is_function, @is_int, @is_integer_indexed, @is_list, @is_map, @is_nim, @is_numeric, @is_obj, @is_obj_xxx, @is_prefix, @is_string, @is_subsequence, @is_suffix, @is_symbol, @is_undef, @is_vector, @member, @occurs

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